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<adc:VO_Catalog_ADC xmlns:adc="http://adc.astro.umd.edu/dataset_054" xmlns:au="http://adc.astro.umd.edu/Units" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cat="http://www.ivoa.net/Catalog" xmlns:cha="http://www.ivoa.net/Characterization" xmlns:col="http://www.ivoa.net/Collection" xmlns:stc="http://www.ivoa.net/xml/STC/stc-v1.20" xmlns:r="http://www.ivoa.net/xml/STC/STCregion/v1.20" xmlns:crd="http://www.ivoa.net/xml/STC/STCcoords/v1.20" xmlns:h="http://www.ivoa.net/Provenance" xmlns:p="http://www.ivoa.net/Publications" xmlns:ppl="http://www.ivoa.net/People" xmlns:ucd="http://www.ivoa.net/UCD1+" xmlns:u="http://www.ivoa.net/Units" xmlns:q="http://www.ivoa.net/Quantity" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" cid="adc_1100A" name="Washington 10, Results of observations with the six-inch transit circle 1909-1918" xsi:schemaLocation="http://adc.astro.umd.edu/dataset_054 dataset_054.xsd">
  <dc:identifier>1100A</dc:identifier>
  <h:provenance provenanceId="history_1100A">
    <h:creation>
      <h:creator>
        <ppl:person>
          <ppl:firstName>Nancy</ppl:firstName>
          <ppl:middleName>Grace</ppl:middleName>
          <ppl:lastName>Roman</ppl:lastName>
          <ppl:institution>
            <ppl:name>ADC/SSDOO</ppl:name>
          </ppl:institution>
        </ppl:person>
      </h:creator>
      <stc:date>1996-05-31</stc:date>
    </h:creation>
    <h:revisions>
      <h:revision>
        <h:revisor>
          <ppl:team>
            <ppl:name>ADC staff</ppl:name>
            <ppl:institution>
              <ppl:name>ADC</ppl:name>
              <ppl:address>
                <ppl:street>Code 630, Goddard Space Flight Center/NASA</ppl:street>
                <ppl:postcode>20771</ppl:postcode>
                <ppl:city>Greenbelt</ppl:city>
                <ppl:state>Maryland</ppl:state>
                <ppl:country>United States of America</ppl:country>
              </ppl:address>
            </ppl:institution>
          </ppl:team>
          <p:note><![CDATA[Revision using version 1.36 of ADC's legacy conversion pipeline]]></p:note>
        </h:revisor>
        <stc:date>2002-03-19</stc:date>
        <p:note><![CDATA[XML generated from CDS/ADC ReadMe document and associated data files using txt2ML Rules Set: 1.56]]></p:note>
      </h:revision>
      <h:revision>
        <h:revisor>
          <ppl:team>
            <ppl:name>UMd-ADC staff</ppl:name>
            <ppl:institution>
              <ppl:name>UMd Astronomical Data Center</ppl:name>
              <ppl:address>
                <ppl:street>Department of Astronomy, University of Maryland</ppl:street>
                <ppl:postcode>20742</ppl:postcode>
                <ppl:city>College Park</ppl:city>
                <ppl:state>Maryland</ppl:state>
                <ppl:country>United States of America</ppl:country>
              </ppl:address>
              <ppl:email>thomas@astro.umd.edu</ppl:email>
              <ppl:url>http://archive.astro.umd.edu/archive</ppl:url>
            </ppl:institution>
          </ppl:team>
          <p:note><![CDATA[Revision using version 0.16 of the quantity/dataset transform pipeline.]]></p:note>
        </h:revisor>
        <stc:date>2005-09-30T05:02:50-04:00</stc:date>
        <p:note><![CDATA[This version of the document has unverified coordinate system information. Use at your ownrisk!]]></p:note>
      </h:revision>
    </h:revisions>
  </h:provenance>
  <p:references referencesId="ref_1100A">
    <p:reference referenceId="srf1" type="source">
      <dc:title>Washington 10, Results of observations with the six-inch transit circle 1909-1918</dc:title>
      <p:abstract/>
      <p:description>
        <p:para type="section"><![CDATA[General Description]]></p:para>
        <p:para><![CDATA[
   This catalog is a compilation of seven catalogs of positions derived
   from observations with the six-inch transit circle of the U. S. Naval
   Observatory. The observations were obtained between 1911 and 1971 and
   were published in the catalogs: W10, W25, W150, W250, W350, W450, and
   W550. Proper motions and, in most catalogs, spectral types were added
   from other sources.]]></p:para>
        <p:para><![CDATA[
   W10 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from May 1911 to August 16, 1918. The
   probable errors of a single observation in right ascensions range from
   0.014s/cos(dec.) to 0.025s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes. In declination, the errors of a
   single observation range from 0.25" to 1.42" with only stars below
   altitude 15 deg. being greater than 0.6". The positions are reduced to
   the equinox 1910.0.]]></p:para>
        <p:para><![CDATA[   W25 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1930.3 to 1935.4 The probable errors of
   a single observation in right ascensions range from 0.012s/cos(dec.) to
   0.023s/cos(dec.). As expected, these are largest for the stars observed
   at low altitudes. In declination, the errors of a single observation
   range from 0.30" to 0.52" with only stars below altitude 27deg. being
   greater than 0.37". The positions are reduced to the equinox 1925.0. The
   catalog also includes proper motions, primarily from the GC, reduced to
   1925 and magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W150 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1936 to 1941. The probable errors of a
   single observation in right ascensions range from 0.012s/cos(dec.) to
   0.024s/cos(dec.). Only stars observed below the pole or south of
   declination -25 deg. have probable errors greater than 0.016s/cos(dec.).
   In declination, the errors of a single observation range from
   0.26" to 0.059" with only stars below altitude 27 deg. being greater
   than 0.35". The positions are reduced to the equinox 1950.0. The catalog
   also includes proper motions, primarily from the GC, reduced to 1950 and
   magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W250 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1941 to 1949. The positions were
   intended for reference stars for zone catalogs and the Lick proper
   motion survey. At least 75 stars/ sq. deg. were selected, uniformly
   spaced in right ascension with magnitudes in the range 5.5 to 8.5.
   Priority was given to stars with favorable observing histories. No
   double stars with separations in the range 1" to 10" were included. The
   probable errors of a single observation in right ascensions range from
   0.12s/cos(dec.) to 0.21s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes with the probable errors greater
   than 0.16s/cos(dec.) only if the zenith distance was greater than 60
   deg. In declination, the errors of a single observation range from 0.27"
   to 0.057" with only stars with zenith distances greater than 65 deg.
   being greater than 0.40". The positions are reduced to the equinox
   1950.0.]]></p:para>
        <p:para><![CDATA[   W350 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1949 to 1956. A list of 255 Primary
   Reference Stars for Pluto was observed in February and March 1949.
   Seventy five stars per 100 square degrees between declinations +35 and
   +50 brighter than 8.5 mag. were included to provide a reference star
   grid for the Yale Photographic Zone Programs and the Lick Proper Motion
   Programs. Blaauw's O- and B-type stars and Cepheids were introduced in
   July 1954. The probable errors of a single observation in right
   ascensions range from 0.011s/cos(dec.) to 0.023s/cos(dec.) with only
   those below the pole greater than 0.015s/cos(dec.). In declination, the
   errors of a single observation range from 0.26" to 0.68" with only stars
   below the pole being greater than 0.4". The positions are reduced to the
   equinox 1950.0. The catalog also includes magnitudes and spectral types
   from the GC, HD or Leander McCormick Observatory Vol. XIII.]]></p:para>
        <p:para><![CDATA[   W450 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from January 1956 to September 1962. The
   probable errors of a single observation in right ascensions range from
   0.011s/cos(dec.) to 0.023s/cos(dec.) with only those measured below the
   pole than 0.015s/cos(dec.). In declination, the errors of a single
   observation range from 0.21" to 0.54" with only stars measured below the
   pole being greater than 0.33". The positions are reduced to the equinox
   1950.0. Stars north of declination -30 deg. were included but the
   emphasis was on stars north of -10 deg.]]></p:para>
        <p:para><![CDATA[   W550 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from March 1963 through December 1971. The
   primary observing list consisted of FK4 stars north of declination -31
   deg., 1409 FK4 supplemental stars, and the northern portion of the
   Southern Reference Star program. Various other shorter groups of stars
   were added as the work progressed. The mean errors in right ascension
   range from 0.011s/cos(dec.) to 0.033s/cos(dec.) with only those south of
   declination -10 deg. greater than 0.015s/cos(dec.). In declination, the
   mean errors of a single observation range from 0.32" to 0.81" with only
   stars below declination -20 deg. or observed below the pole being
   greater than 0.4". The positions are reduced to the equinox 1950.0. The
   catalog also includes magnitudes and spectral types from various
   sources, particularly the GC and the Smithsonian Astrophysical
   Observatory Star Catalog (SAO).]]></p:para>
      </p:description>
      <p:author>
        <ppl:person>
          <ppl:initial>J</ppl:initial>
          <ppl:initial>C</ppl:initial>
          <ppl:lastName>Hammond</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:journal>
        <p:name>Publ. U.S. Naval Obs.</p:name>
        <p:volume>2 11</p:volume>
        <p:pageno>665</p:pageno>
        <stc:date>1927-??-??</stc:date>
        <p:bibcode>1927QB4.W32v11.....</p:bibcode>
      </p:journal>
    </p:reference>
    <p:reference referenceId="srf2" type="source">
      <dc:title>Washington 25, Results of observations with the six-inch transit circle 1925-1941</dc:title>
      <p:abstract/>
      <p:description>
        <p:para type="section"><![CDATA[General Description]]></p:para>
        <p:para><![CDATA[
   This catalog is a compilation of seven catalogs of positions derived
   from observations with the six-inch transit circle of the U. S. Naval
   Observatory. The observations were obtained between 1911 and 1971 and
   were published in the catalogs: W10, W25, W150, W250, W350, W450, and
   W550. Proper motions and, in most catalogs, spectral types were added
   from other sources.]]></p:para>
        <p:para><![CDATA[
   W10 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from May 1911 to August 16, 1918. The
   probable errors of a single observation in right ascensions range from
   0.014s/cos(dec.) to 0.025s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes. In declination, the errors of a
   single observation range from 0.25" to 1.42" with only stars below
   altitude 15 deg. being greater than 0.6". The positions are reduced to
   the equinox 1910.0.]]></p:para>
        <p:para><![CDATA[   W25 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1930.3 to 1935.4 The probable errors of
   a single observation in right ascensions range from 0.012s/cos(dec.) to
   0.023s/cos(dec.). As expected, these are largest for the stars observed
   at low altitudes. In declination, the errors of a single observation
   range from 0.30" to 0.52" with only stars below altitude 27deg. being
   greater than 0.37". The positions are reduced to the equinox 1925.0. The
   catalog also includes proper motions, primarily from the GC, reduced to
   1925 and magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W150 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1936 to 1941. The probable errors of a
   single observation in right ascensions range from 0.012s/cos(dec.) to
   0.024s/cos(dec.). Only stars observed below the pole or south of
   declination -25 deg. have probable errors greater than 0.016s/cos(dec.).
   In declination, the errors of a single observation range from
   0.26" to 0.059" with only stars below altitude 27 deg. being greater
   than 0.35". The positions are reduced to the equinox 1950.0. The catalog
   also includes proper motions, primarily from the GC, reduced to 1950 and
   magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W250 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1941 to 1949. The positions were
   intended for reference stars for zone catalogs and the Lick proper
   motion survey. At least 75 stars/ sq. deg. were selected, uniformly
   spaced in right ascension with magnitudes in the range 5.5 to 8.5.
   Priority was given to stars with favorable observing histories. No
   double stars with separations in the range 1" to 10" were included. The
   probable errors of a single observation in right ascensions range from
   0.12s/cos(dec.) to 0.21s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes with the probable errors greater
   than 0.16s/cos(dec.) only if the zenith distance was greater than 60
   deg. In declination, the errors of a single observation range from 0.27"
   to 0.057" with only stars with zenith distances greater than 65 deg.
   being greater than 0.40". The positions are reduced to the equinox
   1950.0.]]></p:para>
        <p:para><![CDATA[   W350 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1949 to 1956. A list of 255 Primary
   Reference Stars for Pluto was observed in February and March 1949.
   Seventy five stars per 100 square degrees between declinations +35 and
   +50 brighter than 8.5 mag. were included to provide a reference star
   grid for the Yale Photographic Zone Programs and the Lick Proper Motion
   Programs. Blaauw's O- and B-type stars and Cepheids were introduced in
   July 1954. The probable errors of a single observation in right
   ascensions range from 0.011s/cos(dec.) to 0.023s/cos(dec.) with only
   those below the pole greater than 0.015s/cos(dec.). In declination, the
   errors of a single observation range from 0.26" to 0.68" with only stars
   below the pole being greater than 0.4". The positions are reduced to the
   equinox 1950.0. The catalog also includes magnitudes and spectral types
   from the GC, HD or Leander McCormick Observatory Vol. XIII.]]></p:para>
        <p:para><![CDATA[   W450 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from January 1956 to September 1962. The
   probable errors of a single observation in right ascensions range from
   0.011s/cos(dec.) to 0.023s/cos(dec.) with only those measured below the
   pole than 0.015s/cos(dec.). In declination, the errors of a single
   observation range from 0.21" to 0.54" with only stars measured below the
   pole being greater than 0.33". The positions are reduced to the equinox
   1950.0. Stars north of declination -30 deg. were included but the
   emphasis was on stars north of -10 deg.]]></p:para>
        <p:para><![CDATA[   W550 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from March 1963 through December 1971. The
   primary observing list consisted of FK4 stars north of declination -31
   deg., 1409 FK4 supplemental stars, and the northern portion of the
   Southern Reference Star program. Various other shorter groups of stars
   were added as the work progressed. The mean errors in right ascension
   range from 0.011s/cos(dec.) to 0.033s/cos(dec.) with only those south of
   declination -10 deg. greater than 0.015s/cos(dec.). In declination, the
   mean errors of a single observation range from 0.32" to 0.81" with only
   stars below declination -20 deg. or observed below the pole being
   greater than 0.4". The positions are reduced to the equinox 1950.0. The
   catalog also includes magnitudes and spectral types from various
   sources, particularly the GC and the Smithsonian Astrophysical
   Observatory Star Catalog (SAO).]]></p:para>
      </p:description>
      <p:author>
        <ppl:person>
          <ppl:initial>C</ppl:initial>
          <ppl:initial>B</ppl:initial>
          <ppl:lastName>Watts</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:author>
        <ppl:person>
          <ppl:initial>A</ppl:initial>
          <ppl:initial>N</ppl:initial>
          <ppl:lastName>Adams</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:other>
        <p:name>Publ. U.S. Naval Obs. 2 16, Part I 1</p:name>
        <stc:date>1949-??-??</stc:date>
        <p:bibcode>1949QB4.W32v16p1...</p:bibcode>
      </p:other>
    </p:reference>
    <p:reference referenceId="srf3" type="source">
      <dc:title>Washington 150, Results of observations with the six-inch transit circle 1925-1941</dc:title>
      <p:abstract/>
      <p:description>
        <p:para type="section"><![CDATA[General Description]]></p:para>
        <p:para><![CDATA[
   This catalog is a compilation of seven catalogs of positions derived
   from observations with the six-inch transit circle of the U. S. Naval
   Observatory. The observations were obtained between 1911 and 1971 and
   were published in the catalogs: W10, W25, W150, W250, W350, W450, and
   W550. Proper motions and, in most catalogs, spectral types were added
   from other sources.]]></p:para>
        <p:para><![CDATA[
   W10 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from May 1911 to August 16, 1918. The
   probable errors of a single observation in right ascensions range from
   0.014s/cos(dec.) to 0.025s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes. In declination, the errors of a
   single observation range from 0.25" to 1.42" with only stars below
   altitude 15 deg. being greater than 0.6". The positions are reduced to
   the equinox 1910.0.]]></p:para>
        <p:para><![CDATA[   W25 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1930.3 to 1935.4 The probable errors of
   a single observation in right ascensions range from 0.012s/cos(dec.) to
   0.023s/cos(dec.). As expected, these are largest for the stars observed
   at low altitudes. In declination, the errors of a single observation
   range from 0.30" to 0.52" with only stars below altitude 27deg. being
   greater than 0.37". The positions are reduced to the equinox 1925.0. The
   catalog also includes proper motions, primarily from the GC, reduced to
   1925 and magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W150 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1936 to 1941. The probable errors of a
   single observation in right ascensions range from 0.012s/cos(dec.) to
   0.024s/cos(dec.). Only stars observed below the pole or south of
   declination -25 deg. have probable errors greater than 0.016s/cos(dec.).
   In declination, the errors of a single observation range from
   0.26" to 0.059" with only stars below altitude 27 deg. being greater
   than 0.35". The positions are reduced to the equinox 1950.0. The catalog
   also includes proper motions, primarily from the GC, reduced to 1950 and
   magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W250 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1941 to 1949. The positions were
   intended for reference stars for zone catalogs and the Lick proper
   motion survey. At least 75 stars/ sq. deg. were selected, uniformly
   spaced in right ascension with magnitudes in the range 5.5 to 8.5.
   Priority was given to stars with favorable observing histories. No
   double stars with separations in the range 1" to 10" were included. The
   probable errors of a single observation in right ascensions range from
   0.12s/cos(dec.) to 0.21s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes with the probable errors greater
   than 0.16s/cos(dec.) only if the zenith distance was greater than 60
   deg. In declination, the errors of a single observation range from 0.27"
   to 0.057" with only stars with zenith distances greater than 65 deg.
   being greater than 0.40". The positions are reduced to the equinox
   1950.0.]]></p:para>
        <p:para><![CDATA[   W350 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1949 to 1956. A list of 255 Primary
   Reference Stars for Pluto was observed in February and March 1949.
   Seventy five stars per 100 square degrees between declinations +35 and
   +50 brighter than 8.5 mag. were included to provide a reference star
   grid for the Yale Photographic Zone Programs and the Lick Proper Motion
   Programs. Blaauw's O- and B-type stars and Cepheids were introduced in
   July 1954. The probable errors of a single observation in right
   ascensions range from 0.011s/cos(dec.) to 0.023s/cos(dec.) with only
   those below the pole greater than 0.015s/cos(dec.). In declination, the
   errors of a single observation range from 0.26" to 0.68" with only stars
   below the pole being greater than 0.4". The positions are reduced to the
   equinox 1950.0. The catalog also includes magnitudes and spectral types
   from the GC, HD or Leander McCormick Observatory Vol. XIII.]]></p:para>
        <p:para><![CDATA[   W450 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from January 1956 to September 1962. The
   probable errors of a single observation in right ascensions range from
   0.011s/cos(dec.) to 0.023s/cos(dec.) with only those measured below the
   pole than 0.015s/cos(dec.). In declination, the errors of a single
   observation range from 0.21" to 0.54" with only stars measured below the
   pole being greater than 0.33". The positions are reduced to the equinox
   1950.0. Stars north of declination -30 deg. were included but the
   emphasis was on stars north of -10 deg.]]></p:para>
        <p:para><![CDATA[   W550 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from March 1963 through December 1971. The
   primary observing list consisted of FK4 stars north of declination -31
   deg., 1409 FK4 supplemental stars, and the northern portion of the
   Southern Reference Star program. Various other shorter groups of stars
   were added as the work progressed. The mean errors in right ascension
   range from 0.011s/cos(dec.) to 0.033s/cos(dec.) with only those south of
   declination -10 deg. greater than 0.015s/cos(dec.). In declination, the
   mean errors of a single observation range from 0.32" to 0.81" with only
   stars below declination -20 deg. or observed below the pole being
   greater than 0.4". The positions are reduced to the equinox 1950.0. The
   catalog also includes magnitudes and spectral types from various
   sources, particularly the GC and the Smithsonian Astrophysical
   Observatory Star Catalog (SAO).]]></p:para>
      </p:description>
      <p:author>
        <ppl:person>
          <ppl:initial>C</ppl:initial>
          <ppl:initial>B</ppl:initial>
          <ppl:lastName>Watts</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:author>
        <ppl:person>
          <ppl:initial>A</ppl:initial>
          <ppl:initial>N</ppl:initial>
          <ppl:lastName>Adams</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:other>
        <p:name>Publ. U.S. Naval Obs. 2 16, Part I 255</p:name>
        <stc:date>1949-??-??</stc:date>
        <p:bibcode>1949QB4.W32v16p1...</p:bibcode>
      </p:other>
    </p:reference>
    <p:reference referenceId="srf4" type="source">
      <dc:title>Washington 250, Results of observations with the six-inch transit circle 1941-1949</dc:title>
      <p:abstract/>
      <p:description>
        <p:para type="section"><![CDATA[General Description]]></p:para>
        <p:para><![CDATA[
   This catalog is a compilation of seven catalogs of positions derived
   from observations with the six-inch transit circle of the U. S. Naval
   Observatory. The observations were obtained between 1911 and 1971 and
   were published in the catalogs: W10, W25, W150, W250, W350, W450, and
   W550. Proper motions and, in most catalogs, spectral types were added
   from other sources.]]></p:para>
        <p:para><![CDATA[
   W10 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from May 1911 to August 16, 1918. The
   probable errors of a single observation in right ascensions range from
   0.014s/cos(dec.) to 0.025s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes. In declination, the errors of a
   single observation range from 0.25" to 1.42" with only stars below
   altitude 15 deg. being greater than 0.6". The positions are reduced to
   the equinox 1910.0.]]></p:para>
        <p:para><![CDATA[   W25 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1930.3 to 1935.4 The probable errors of
   a single observation in right ascensions range from 0.012s/cos(dec.) to
   0.023s/cos(dec.). As expected, these are largest for the stars observed
   at low altitudes. In declination, the errors of a single observation
   range from 0.30" to 0.52" with only stars below altitude 27deg. being
   greater than 0.37". The positions are reduced to the equinox 1925.0. The
   catalog also includes proper motions, primarily from the GC, reduced to
   1925 and magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W150 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1936 to 1941. The probable errors of a
   single observation in right ascensions range from 0.012s/cos(dec.) to
   0.024s/cos(dec.). Only stars observed below the pole or south of
   declination -25 deg. have probable errors greater than 0.016s/cos(dec.).
   In declination, the errors of a single observation range from
   0.26" to 0.059" with only stars below altitude 27 deg. being greater
   than 0.35". The positions are reduced to the equinox 1950.0. The catalog
   also includes proper motions, primarily from the GC, reduced to 1950 and
   magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W250 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1941 to 1949. The positions were
   intended for reference stars for zone catalogs and the Lick proper
   motion survey. At least 75 stars/ sq. deg. were selected, uniformly
   spaced in right ascension with magnitudes in the range 5.5 to 8.5.
   Priority was given to stars with favorable observing histories. No
   double stars with separations in the range 1" to 10" were included. The
   probable errors of a single observation in right ascensions range from
   0.12s/cos(dec.) to 0.21s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes with the probable errors greater
   than 0.16s/cos(dec.) only if the zenith distance was greater than 60
   deg. In declination, the errors of a single observation range from 0.27"
   to 0.057" with only stars with zenith distances greater than 65 deg.
   being greater than 0.40". The positions are reduced to the equinox
   1950.0.]]></p:para>
        <p:para><![CDATA[   W350 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1949 to 1956. A list of 255 Primary
   Reference Stars for Pluto was observed in February and March 1949.
   Seventy five stars per 100 square degrees between declinations +35 and
   +50 brighter than 8.5 mag. were included to provide a reference star
   grid for the Yale Photographic Zone Programs and the Lick Proper Motion
   Programs. Blaauw's O- and B-type stars and Cepheids were introduced in
   July 1954. The probable errors of a single observation in right
   ascensions range from 0.011s/cos(dec.) to 0.023s/cos(dec.) with only
   those below the pole greater than 0.015s/cos(dec.). In declination, the
   errors of a single observation range from 0.26" to 0.68" with only stars
   below the pole being greater than 0.4". The positions are reduced to the
   equinox 1950.0. The catalog also includes magnitudes and spectral types
   from the GC, HD or Leander McCormick Observatory Vol. XIII.]]></p:para>
        <p:para><![CDATA[   W450 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from January 1956 to September 1962. The
   probable errors of a single observation in right ascensions range from
   0.011s/cos(dec.) to 0.023s/cos(dec.) with only those measured below the
   pole than 0.015s/cos(dec.). In declination, the errors of a single
   observation range from 0.21" to 0.54" with only stars measured below the
   pole being greater than 0.33". The positions are reduced to the equinox
   1950.0. Stars north of declination -30 deg. were included but the
   emphasis was on stars north of -10 deg.]]></p:para>
        <p:para><![CDATA[   W550 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from March 1963 through December 1971. The
   primary observing list consisted of FK4 stars north of declination -31
   deg., 1409 FK4 supplemental stars, and the northern portion of the
   Southern Reference Star program. Various other shorter groups of stars
   were added as the work progressed. The mean errors in right ascension
   range from 0.011s/cos(dec.) to 0.033s/cos(dec.) with only those south of
   declination -10 deg. greater than 0.015s/cos(dec.). In declination, the
   mean errors of a single observation range from 0.32" to 0.81" with only
   stars below declination -20 deg. or observed below the pole being
   greater than 0.4". The positions are reduced to the equinox 1950.0. The
   catalog also includes magnitudes and spectral types from various
   sources, particularly the GC and the Smithsonian Astrophysical
   Observatory Star Catalog (SAO).]]></p:para>
      </p:description>
      <p:author>
        <ppl:person>
          <ppl:initial>C</ppl:initial>
          <ppl:initial>B</ppl:initial>
          <ppl:lastName>Watts</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:author>
        <ppl:person>
          <ppl:initial>F</ppl:initial>
          <ppl:initial>P</ppl:initial>
          <ppl:lastName>Scott</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:author>
        <ppl:person>
          <ppl:initial>A</ppl:initial>
          <ppl:initial>N</ppl:initial>
          <ppl:lastName>Adams</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:other>
        <p:name>Publ. U. S. Naval Obs. 2 16, Part III 447</p:name>
        <stc:date>1952-??-??</stc:date>
        <p:bibcode>1952QB4.W32v16p3...</p:bibcode>
      </p:other>
    </p:reference>
    <p:reference referenceId="srf5" type="source">
      <dc:title>Washington 350, Results of observations with the six-inch transit circle 1949-1956</dc:title>
      <p:abstract/>
      <p:description>
        <p:para type="section"><![CDATA[General Description]]></p:para>
        <p:para><![CDATA[
   This catalog is a compilation of seven catalogs of positions derived
   from observations with the six-inch transit circle of the U. S. Naval
   Observatory. The observations were obtained between 1911 and 1971 and
   were published in the catalogs: W10, W25, W150, W250, W350, W450, and
   W550. Proper motions and, in most catalogs, spectral types were added
   from other sources.]]></p:para>
        <p:para><![CDATA[
   W10 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from May 1911 to August 16, 1918. The
   probable errors of a single observation in right ascensions range from
   0.014s/cos(dec.) to 0.025s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes. In declination, the errors of a
   single observation range from 0.25" to 1.42" with only stars below
   altitude 15 deg. being greater than 0.6". The positions are reduced to
   the equinox 1910.0.]]></p:para>
        <p:para><![CDATA[   W25 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1930.3 to 1935.4 The probable errors of
   a single observation in right ascensions range from 0.012s/cos(dec.) to
   0.023s/cos(dec.). As expected, these are largest for the stars observed
   at low altitudes. In declination, the errors of a single observation
   range from 0.30" to 0.52" with only stars below altitude 27deg. being
   greater than 0.37". The positions are reduced to the equinox 1925.0. The
   catalog also includes proper motions, primarily from the GC, reduced to
   1925 and magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W150 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1936 to 1941. The probable errors of a
   single observation in right ascensions range from 0.012s/cos(dec.) to
   0.024s/cos(dec.). Only stars observed below the pole or south of
   declination -25 deg. have probable errors greater than 0.016s/cos(dec.).
   In declination, the errors of a single observation range from
   0.26" to 0.059" with only stars below altitude 27 deg. being greater
   than 0.35". The positions are reduced to the equinox 1950.0. The catalog
   also includes proper motions, primarily from the GC, reduced to 1950 and
   magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W250 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1941 to 1949. The positions were
   intended for reference stars for zone catalogs and the Lick proper
   motion survey. At least 75 stars/ sq. deg. were selected, uniformly
   spaced in right ascension with magnitudes in the range 5.5 to 8.5.
   Priority was given to stars with favorable observing histories. No
   double stars with separations in the range 1" to 10" were included. The
   probable errors of a single observation in right ascensions range from
   0.12s/cos(dec.) to 0.21s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes with the probable errors greater
   than 0.16s/cos(dec.) only if the zenith distance was greater than 60
   deg. In declination, the errors of a single observation range from 0.27"
   to 0.057" with only stars with zenith distances greater than 65 deg.
   being greater than 0.40". The positions are reduced to the equinox
   1950.0.]]></p:para>
        <p:para><![CDATA[   W350 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1949 to 1956. A list of 255 Primary
   Reference Stars for Pluto was observed in February and March 1949.
   Seventy five stars per 100 square degrees between declinations +35 and
   +50 brighter than 8.5 mag. were included to provide a reference star
   grid for the Yale Photographic Zone Programs and the Lick Proper Motion
   Programs. Blaauw's O- and B-type stars and Cepheids were introduced in
   July 1954. The probable errors of a single observation in right
   ascensions range from 0.011s/cos(dec.) to 0.023s/cos(dec.) with only
   those below the pole greater than 0.015s/cos(dec.). In declination, the
   errors of a single observation range from 0.26" to 0.68" with only stars
   below the pole being greater than 0.4". The positions are reduced to the
   equinox 1950.0. The catalog also includes magnitudes and spectral types
   from the GC, HD or Leander McCormick Observatory Vol. XIII.]]></p:para>
        <p:para><![CDATA[   W450 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from January 1956 to September 1962. The
   probable errors of a single observation in right ascensions range from
   0.011s/cos(dec.) to 0.023s/cos(dec.) with only those measured below the
   pole than 0.015s/cos(dec.). In declination, the errors of a single
   observation range from 0.21" to 0.54" with only stars measured below the
   pole being greater than 0.33". The positions are reduced to the equinox
   1950.0. Stars north of declination -30 deg. were included but the
   emphasis was on stars north of -10 deg.]]></p:para>
        <p:para><![CDATA[   W550 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from March 1963 through December 1971. The
   primary observing list consisted of FK4 stars north of declination -31
   deg., 1409 FK4 supplemental stars, and the northern portion of the
   Southern Reference Star program. Various other shorter groups of stars
   were added as the work progressed. The mean errors in right ascension
   range from 0.011s/cos(dec.) to 0.033s/cos(dec.) with only those south of
   declination -10 deg. greater than 0.015s/cos(dec.). In declination, the
   mean errors of a single observation range from 0.32" to 0.81" with only
   stars below declination -20 deg. or observed below the pole being
   greater than 0.4". The positions are reduced to the equinox 1950.0. The
   catalog also includes magnitudes and spectral types from various
   sources, particularly the GC and the Smithsonian Astrophysical
   Observatory Star Catalog (SAO).]]></p:para>
      </p:description>
      <p:author>
        <ppl:person>
          <ppl:initial>A</ppl:initial>
          <ppl:initial>N</ppl:initial>
          <ppl:lastName>Adams</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:author>
        <ppl:person>
          <ppl:initial>S</ppl:initial>
          <ppl:initial>M</ppl:initial>
          <ppl:lastName>Bestul</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:author>
        <ppl:person>
          <ppl:initial>D</ppl:initial>
          <ppl:initial>K</ppl:initial>
          <ppl:lastName>Scott</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:other>
        <p:name>Publ. U.S. Naval Obs. 2 19, Part I 111</p:name>
        <stc:date>1964-??-??</stc:date>
        <p:bibcode>1964QB4.W32v19p1...</p:bibcode>
      </p:other>
    </p:reference>
    <p:reference referenceId="srf6" type="source">
      <dc:title>Washington 450, Results of observations with the six-inch transit circle 1956-1962</dc:title>
      <p:abstract/>
      <p:description>
        <p:para type="section"><![CDATA[General Description]]></p:para>
        <p:para><![CDATA[
   This catalog is a compilation of seven catalogs of positions derived
   from observations with the six-inch transit circle of the U. S. Naval
   Observatory. The observations were obtained between 1911 and 1971 and
   were published in the catalogs: W10, W25, W150, W250, W350, W450, and
   W550. Proper motions and, in most catalogs, spectral types were added
   from other sources.]]></p:para>
        <p:para><![CDATA[
   W10 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from May 1911 to August 16, 1918. The
   probable errors of a single observation in right ascensions range from
   0.014s/cos(dec.) to 0.025s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes. In declination, the errors of a
   single observation range from 0.25" to 1.42" with only stars below
   altitude 15 deg. being greater than 0.6". The positions are reduced to
   the equinox 1910.0.]]></p:para>
        <p:para><![CDATA[   W25 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1930.3 to 1935.4 The probable errors of
   a single observation in right ascensions range from 0.012s/cos(dec.) to
   0.023s/cos(dec.). As expected, these are largest for the stars observed
   at low altitudes. In declination, the errors of a single observation
   range from 0.30" to 0.52" with only stars below altitude 27deg. being
   greater than 0.37". The positions are reduced to the equinox 1925.0. The
   catalog also includes proper motions, primarily from the GC, reduced to
   1925 and magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W150 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1936 to 1941. The probable errors of a
   single observation in right ascensions range from 0.012s/cos(dec.) to
   0.024s/cos(dec.). Only stars observed below the pole or south of
   declination -25 deg. have probable errors greater than 0.016s/cos(dec.).
   In declination, the errors of a single observation range from
   0.26" to 0.059" with only stars below altitude 27 deg. being greater
   than 0.35". The positions are reduced to the equinox 1950.0. The catalog
   also includes proper motions, primarily from the GC, reduced to 1950 and
   magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W250 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1941 to 1949. The positions were
   intended for reference stars for zone catalogs and the Lick proper
   motion survey. At least 75 stars/ sq. deg. were selected, uniformly
   spaced in right ascension with magnitudes in the range 5.5 to 8.5.
   Priority was given to stars with favorable observing histories. No
   double stars with separations in the range 1" to 10" were included. The
   probable errors of a single observation in right ascensions range from
   0.12s/cos(dec.) to 0.21s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes with the probable errors greater
   than 0.16s/cos(dec.) only if the zenith distance was greater than 60
   deg. In declination, the errors of a single observation range from 0.27"
   to 0.057" with only stars with zenith distances greater than 65 deg.
   being greater than 0.40". The positions are reduced to the equinox
   1950.0.]]></p:para>
        <p:para><![CDATA[   W350 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1949 to 1956. A list of 255 Primary
   Reference Stars for Pluto was observed in February and March 1949.
   Seventy five stars per 100 square degrees between declinations +35 and
   +50 brighter than 8.5 mag. were included to provide a reference star
   grid for the Yale Photographic Zone Programs and the Lick Proper Motion
   Programs. Blaauw's O- and B-type stars and Cepheids were introduced in
   July 1954. The probable errors of a single observation in right
   ascensions range from 0.011s/cos(dec.) to 0.023s/cos(dec.) with only
   those below the pole greater than 0.015s/cos(dec.). In declination, the
   errors of a single observation range from 0.26" to 0.68" with only stars
   below the pole being greater than 0.4". The positions are reduced to the
   equinox 1950.0. The catalog also includes magnitudes and spectral types
   from the GC, HD or Leander McCormick Observatory Vol. XIII.]]></p:para>
        <p:para><![CDATA[   W450 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from January 1956 to September 1962. The
   probable errors of a single observation in right ascensions range from
   0.011s/cos(dec.) to 0.023s/cos(dec.) with only those measured below the
   pole than 0.015s/cos(dec.). In declination, the errors of a single
   observation range from 0.21" to 0.54" with only stars measured below the
   pole being greater than 0.33". The positions are reduced to the equinox
   1950.0. Stars north of declination -30 deg. were included but the
   emphasis was on stars north of -10 deg.]]></p:para>
        <p:para><![CDATA[   W550 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from March 1963 through December 1971. The
   primary observing list consisted of FK4 stars north of declination -31
   deg., 1409 FK4 supplemental stars, and the northern portion of the
   Southern Reference Star program. Various other shorter groups of stars
   were added as the work progressed. The mean errors in right ascension
   range from 0.011s/cos(dec.) to 0.033s/cos(dec.) with only those south of
   declination -10 deg. greater than 0.015s/cos(dec.). In declination, the
   mean errors of a single observation range from 0.32" to 0.81" with only
   stars below declination -20 deg. or observed below the pole being
   greater than 0.4". The positions are reduced to the equinox 1950.0. The
   catalog also includes magnitudes and spectral types from various
   sources, particularly the GC and the Smithsonian Astrophysical
   Observatory Star Catalog (SAO).]]></p:para>
      </p:description>
      <p:author>
        <ppl:person>
          <ppl:initial>A</ppl:initial>
          <ppl:initial>N</ppl:initial>
          <ppl:lastName>Adams</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:author>
        <ppl:person>
          <ppl:initial>S</ppl:initial>
          <ppl:initial>M</ppl:initial>
          <ppl:lastName>Bestul</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:author>
        <ppl:person>
          <ppl:initial>D</ppl:initial>
          <ppl:initial>K</ppl:initial>
          <ppl:lastName>Scott</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:other>
        <p:name>Publ. U.S. Naval Obs. 2 19, Part II 295</p:name>
        <stc:date>1968-??-??</stc:date>
        <p:bibcode>1969QB4.W32v19p2...</p:bibcode>
      </p:other>
    </p:reference>
    <p:reference referenceId="srf7" type="source">
      <dc:title>Washington 550, Results of observations with the six-inch transit circle 1963-1971</dc:title>
      <p:abstract/>
      <p:description>
        <p:para type="section"><![CDATA[General Description]]></p:para>
        <p:para><![CDATA[
   This catalog is a compilation of seven catalogs of positions derived
   from observations with the six-inch transit circle of the U. S. Naval
   Observatory. The observations were obtained between 1911 and 1971 and
   were published in the catalogs: W10, W25, W150, W250, W350, W450, and
   W550. Proper motions and, in most catalogs, spectral types were added
   from other sources.]]></p:para>
        <p:para><![CDATA[
   W10 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from May 1911 to August 16, 1918. The
   probable errors of a single observation in right ascensions range from
   0.014s/cos(dec.) to 0.025s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes. In declination, the errors of a
   single observation range from 0.25" to 1.42" with only stars below
   altitude 15 deg. being greater than 0.6". The positions are reduced to
   the equinox 1910.0.]]></p:para>
        <p:para><![CDATA[   W25 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1930.3 to 1935.4 The probable errors of
   a single observation in right ascensions range from 0.012s/cos(dec.) to
   0.023s/cos(dec.). As expected, these are largest for the stars observed
   at low altitudes. In declination, the errors of a single observation
   range from 0.30" to 0.52" with only stars below altitude 27deg. being
   greater than 0.37". The positions are reduced to the equinox 1925.0. The
   catalog also includes proper motions, primarily from the GC, reduced to
   1925 and magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W150 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1936 to 1941. The probable errors of a
   single observation in right ascensions range from 0.012s/cos(dec.) to
   0.024s/cos(dec.). Only stars observed below the pole or south of
   declination -25 deg. have probable errors greater than 0.016s/cos(dec.).
   In declination, the errors of a single observation range from
   0.26" to 0.059" with only stars below altitude 27 deg. being greater
   than 0.35". The positions are reduced to the equinox 1950.0. The catalog
   also includes proper motions, primarily from the GC, reduced to 1950 and
   magnitudes and spectral types from the FK3, GC, or HD.]]></p:para>
        <p:para><![CDATA[   W250 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1941 to 1949. The positions were
   intended for reference stars for zone catalogs and the Lick proper
   motion survey. At least 75 stars/ sq. deg. were selected, uniformly
   spaced in right ascension with magnitudes in the range 5.5 to 8.5.
   Priority was given to stars with favorable observing histories. No
   double stars with separations in the range 1" to 10" were included. The
   probable errors of a single observation in right ascensions range from
   0.12s/cos(dec.) to 0.21s/cos(dec.). As expected, these are largest for
   the stars observed at low altitudes with the probable errors greater
   than 0.16s/cos(dec.) only if the zenith distance was greater than 60
   deg. In declination, the errors of a single observation range from 0.27"
   to 0.057" with only stars with zenith distances greater than 65 deg.
   being greater than 0.40". The positions are reduced to the equinox
   1950.0.]]></p:para>
        <p:para><![CDATA[   W350 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from 1949 to 1956. A list of 255 Primary
   Reference Stars for Pluto was observed in February and March 1949.
   Seventy five stars per 100 square degrees between declinations +35 and
   +50 brighter than 8.5 mag. were included to provide a reference star
   grid for the Yale Photographic Zone Programs and the Lick Proper Motion
   Programs. Blaauw's O- and B-type stars and Cepheids were introduced in
   July 1954. The probable errors of a single observation in right
   ascensions range from 0.011s/cos(dec.) to 0.023s/cos(dec.) with only
   those below the pole greater than 0.015s/cos(dec.). In declination, the
   errors of a single observation range from 0.26" to 0.68" with only stars
   below the pole being greater than 0.4". The positions are reduced to the
   equinox 1950.0. The catalog also includes magnitudes and spectral types
   from the GC, HD or Leander McCormick Observatory Vol. XIII.]]></p:para>
        <p:para><![CDATA[   W450 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from January 1956 to September 1962. The
   probable errors of a single observation in right ascensions range from
   0.011s/cos(dec.) to 0.023s/cos(dec.) with only those measured below the
   pole than 0.015s/cos(dec.). In declination, the errors of a single
   observation range from 0.21" to 0.54" with only stars measured below the
   pole being greater than 0.33". The positions are reduced to the equinox
   1950.0. Stars north of declination -30 deg. were included but the
   emphasis was on stars north of -10 deg.]]></p:para>
        <p:para><![CDATA[   W550 contains the observations made with the six-inch transit circle of
   the U. S. Naval Observatory from March 1963 through December 1971. The
   primary observing list consisted of FK4 stars north of declination -31
   deg., 1409 FK4 supplemental stars, and the northern portion of the
   Southern Reference Star program. Various other shorter groups of stars
   were added as the work progressed. The mean errors in right ascension
   range from 0.011s/cos(dec.) to 0.033s/cos(dec.) with only those south of
   declination -10 deg. greater than 0.015s/cos(dec.). In declination, the
   mean errors of a single observation range from 0.32" to 0.81" with only
   stars below declination -20 deg. or observed below the pole being
   greater than 0.4". The positions are reduced to the equinox 1950.0. The
   catalog also includes magnitudes and spectral types from various
   sources, particularly the GC and the Smithsonian Astrophysical
   Observatory Star Catalog (SAO).]]></p:para>
      </p:description>
      <p:author>
        <ppl:person>
          <ppl:initial>J</ppl:initial>
          <ppl:initial>A</ppl:initial>
          <ppl:lastName>Hughes</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:author>
        <ppl:person>
          <ppl:initial>D</ppl:initial>
          <ppl:initial>K</ppl:initial>
          <ppl:lastName>Scott</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:other>
        <p:name>Publ. U.S. Naval Obs. 2 23, Part III 165</p:name>
        <stc:date>1982-??-??</stc:date>
        <p:bibcode>1982QB4.W32.v23p3..</p:bibcode>
      </p:other>
    </p:reference>
  </p:references>
  <adc:data>
    <cat:VOCatalog cid="adc_cat_w10" name="w10" description="W10">
      <dc:identifier>1100A_w10</dc:identifier>
      <h:refProvenance provenanceIdRef="history_1100A"/>
      <p:refReferences referencesIdRef="ref_1100A"/>
      <cat:data>
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              <q:skip>
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            </q:fixedWidth>
            <q:external xlink:href="1100A_w10.dat"/>
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          <col:property name="id" description="Running number identification" qid="w10_id">
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              <q:refQuantity qidRef="w10_id"/>
              <cha:min>1</cha:min>
              <cha:max>2499</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w10"/>
            </q:axes>
            <u:unitless/>
            <q:integer noDataValue="-9999" width="5" type="decimal"/>
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          </col:property>
          <col:property name="DMzone" description="*Durchmusterung zone" qid="w10_DMzone">
            <cha:limits>
              <q:refQuantity qidRef="w10_DMzone"/>
              <cha:min>-31</cha:min>
              <cha:max>+89</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w10"/>
            </q:axes>
            <au:units name="deg">
              <au:unit>deg</au:unit>
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            <q:integer noDataValue="-99" width="3" type="decimal"/>
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          </col:property>
          <col:property name="DMno" description="Durchmusterung number" qid="w10_DMno">
            <cha:limits>
              <q:refQuantity qidRef="w10_DMno"/>
              <cha:min>0</cha:min>
              <cha:max>19370</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w10"/>
            </q:axes>
            <u:unitless/>
            <q:integer noDataValue="-9999" width="5" type="decimal"/>
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          </col:property>
          <col:property name="rem" description="[ *] Note in DM catalog" qid="w10_rem">
            <cha:limits>
              <q:refQuantity qidRef="w10_rem"/>
              <cha:min/>
              <cha:max/>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w10"/>
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            <u:unitless/>
            <q:string width="1" noDataValue=" "/>
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          <col:property name="mag" description="?Magnitude" qid="w10_mag">
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              <q:refQuantity qidRef="w10_mag"/>
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            <ucd:ucd>mag</ucd:ucd>
            <q:axes>
              <q:refQuantity qidRef="obj_w10"/>
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            <q:float noDataValue="-9.99" precision="2" width="5"/>
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              <q:refQuantity qidRef="w10_RA"/>
              <cha:min>00 00 23.221</cha:min>
              <cha:max>23 59 18.740</cha:max>
            </cha:limits>
            <ucd:ucd>RAhms</ucd:ucd>
            <stc:AstroCoordSystem qid="coords_w10_RA_1100A">
              <stc:TimeFrame>
                <stc:TimeScale>LST</stc:TimeScale>
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              </stc:TimeFrame>
              <stc:SpaceFrame>
                <stc:FK4>
                  <stc:Equinox type="Besselian">
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                <stc:BARYCENTER/>
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                  <stc:coord_naxes>3</stc:coord_naxes>
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            <u:unitless/>
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              <q:refQuantity qidRef="w10_pmRA"/>
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            <ucd:ucd>pmRA</ucd:ucd>
            <stc:CoordSystemRef qidRef="coords_w10_RA_1100A"/>
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              <q:refQuantity qidRef="obj_w10"/>
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            <au:units name="s">
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            <q:float noDataValue="-9.999" precision="3" width="6"/>
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          <col:property name="DE" description="Declination (Eq: 1910.0)" qid="w10_DE">
            <cha:limits>
              <q:refQuantity qidRef="w10_DE"/>
              <cha:min>-31 08 44.63</cha:min>
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            </cha:limits>
            <ucd:ucd>DEdms</ucd:ucd>
            <stc:CoordSystemRef qidRef="coords_w10_RA_1100A"/>
            <q:axes>
              <q:refQuantity qidRef="obj_w10"/>
            </q:axes>
            <u:unitless/>
            <q:string width="12" noDataValue="            "/>
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          </col:property>
          <col:property name="pmDE" description="*Annual proper motion in declination" qid="w10_pmDE">
            <cha:limits>
              <q:refQuantity qidRef="w10_pmDE"/>
              <cha:min>-11.45</cha:min>
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            <ucd:ucd>pmDE</ucd:ucd>
            <stc:CoordSystemRef qidRef="coords_w10_RA_1100A"/>
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              <q:refQuantity qidRef="obj_w10"/>
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            <au:units name="arcsec">
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            <q:float noDataValue="-99.99" precision="2" width="6"/>
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          </col:property>
          <col:property name="o_RAh" description="Number of observations - in RA" qid="w10_o_RAh">
            <cha:limits>
              <q:refQuantity qidRef="w10_o_RAh"/>
              <cha:min>1</cha:min>
              <cha:max>241</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w10"/>
            </q:axes>
            <u:unitless/>
            <q:integer noDataValue="-99" width="3" type="decimal"/>
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          </col:property>
          <col:property name="o_DEd" description="Number of observations - DEc" qid="w10_o_DEd">
            <cha:limits>
              <q:refQuantity qidRef="w10_o_DEd"/>
              <cha:min>1</cha:min>
              <cha:max>236</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w10"/>
            </q:axes>
            <u:unitless/>
            <q:integer noDataValue="-99" width="3" type="decimal"/>
            <q:values fromResource="res_w10"/>
          </col:property>
          <col:property name="date_RA" description="Mean date of observations - in RA" qid="w10_date_RA">
            <cha:limits>
              <q:refQuantity qidRef="w10_date_RA"/>
              <cha:min>1910.00</cha:min>
              <cha:max>1918.58</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w10"/>
            </q:axes>
            <au:units name="yr">
              <au:unit>yr</au:unit>
            </au:units>
            <q:float noDataValue="-999.99" precision="2" width="7"/>
            <q:values fromResource="res_w10"/>
          </col:property>
          <col:property name="date_DE" description="Mean date of observations - in DEc" qid="w10_date_DE">
            <cha:limits>
              <q:refQuantity qidRef="w10_date_DE"/>
              <cha:min>1910.00</cha:min>
              <cha:max>1918.58</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w10"/>
            </q:axes>
            <au:units name="yr">
              <au:unit>yr</au:unit>
            </au:units>
            <q:float noDataValue="-999.99" precision="2" width="7"/>
            <q:values fromResource="res_w10"/>
          </col:property>
          <col:property name="cat" description="The source catalog" qid="w10_cat">
            <cha:limits>
              <q:refQuantity qidRef="w10_cat"/>
              <cha:min/>
              <cha:max/>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w10"/>
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            <u:unitless/>
            <q:string width="5" noDataValue="     "/>
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        </col:object>
      </cat:data>
    </cat:VOCatalog>
    <cat:VOCatalog cid="adc_cat_w25" name="w25" description="W25">
      <dc:identifier>1100A_w25</dc:identifier>
      <h:refProvenance provenanceIdRef="history_1100A"/>
      <p:refReferences referencesIdRef="ref_1100A"/>
      <cat:data>
        <col:object xlink:href="AstroObject.xsd" xml:base="http://www.ivoa.net/DataModels/" qid="obj_w25" numberOfObjects="2336">
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            <q:recordOrder qidRefs="w25_id w25_DMzone w25_DMno w25_rem w25_mag w25_RA w25_pmRA w25_DE w25_pmDE w25_o_RAh w25_o_DEd w25_date_RA w25_date_DE w25_cat"/>
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              <q:read/>
              <q:skip>
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            <q:external xlink:href="1100A_w25.dat"/>
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          <col:property name="id" description="Running number identification" qid="w25_id">
            <cha:limits>
              <q:refQuantity qidRef="w25_id"/>
              <cha:min>1</cha:min>
              <cha:max>2383</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
            </q:axes>
            <u:unitless/>
            <q:integer noDataValue="-9999" width="5" type="decimal"/>
            <q:values fromResource="res_w25"/>
          </col:property>
          <col:property name="DMzone" description="*Durchmusterung zone" qid="w25_DMzone">
            <cha:limits>
              <q:refQuantity qidRef="w25_DMzone"/>
              <cha:min>-31</cha:min>
              <cha:max>+89</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
            </q:axes>
            <au:units name="deg">
              <au:unit>deg</au:unit>
            </au:units>
            <q:integer noDataValue="-99" width="3" type="decimal"/>
            <q:values fromResource="res_w25"/>
          </col:property>
          <col:property name="DMno" description="Durchmusterung number" qid="w25_DMno">
            <cha:limits>
              <q:refQuantity qidRef="w25_DMno"/>
              <cha:min>2</cha:min>
              <cha:max>19370</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
            </q:axes>
            <u:unitless/>
            <q:integer noDataValue="-9999" width="5" type="decimal"/>
            <q:values fromResource="res_w25"/>
          </col:property>
          <col:property name="rem" description="[ *] Note in DM catalog" qid="w25_rem">
            <cha:limits>
              <q:refQuantity qidRef="w25_rem"/>
              <cha:min/>
              <cha:max/>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
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            <u:unitless/>
            <q:string width="1" noDataValue=" "/>
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          </col:property>
          <col:property name="mag" description="?Magnitude" qid="w25_mag">
            <cha:limits>
              <q:refQuantity qidRef="w25_mag"/>
              <cha:min>0.10</cha:min>
              <cha:max>8.10</cha:max>
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            <ucd:ucd>mag</ucd:ucd>
            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
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            <au:units name="mag">
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            <q:float noDataValue="-9.99" precision="2" width="5"/>
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          </col:property>
          <col:property name="RA" description="Right Ascension (Eq: 1925.0)" qid="w25_RA">
            <cha:limits>
              <q:refQuantity qidRef="w25_RA"/>
              <cha:min>00 00 04.919</cha:min>
              <cha:max>23 59 53.944</cha:max>
            </cha:limits>
            <ucd:ucd>RAhms</ucd:ucd>
            <stc:CoordSystemRef qidRef="coords_w10_RA_1100A"/>
            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
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            <u:unitless/>
            <q:string width="12" noDataValue="            "/>
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          <col:property name="pmRA" description="*Annual proper motion in right ascension" qid="w25_pmRA">
            <cha:limits>
              <q:refQuantity qidRef="w25_pmRA"/>
              <cha:min>-0.149</cha:min>
              <cha:max>+0.393</cha:max>
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            <ucd:ucd>pmRA</ucd:ucd>
            <stc:CoordSystemRef qidRef="coords_w10_RA_1100A"/>
            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
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            <au:units name="s">
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            <q:float noDataValue="-9.999" precision="3" width="6"/>
            <q:values fromResource="res_w25"/>
          </col:property>
          <col:property name="DE" description="Declination (Eq: 1925.0)" qid="w25_DE">
            <cha:limits>
              <q:refQuantity qidRef="w25_DE"/>
              <cha:min>-31 06 34.94</cha:min>
              <cha:max>+89 01 42.29</cha:max>
            </cha:limits>
            <ucd:ucd>DEdms</ucd:ucd>
            <stc:CoordSystemRef qidRef="coords_w10_RA_1100A"/>
            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
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            <u:unitless/>
            <q:string width="12" noDataValue="            "/>
            <q:values fromResource="res_w25"/>
          </col:property>
          <col:property name="pmDE" description="*Annual proper motion in declination" qid="w25_pmDE">
            <cha:limits>
              <q:refQuantity qidRef="w25_pmDE"/>
              <cha:min>-5.80</cha:min>
              <cha:max>+3.17</cha:max>
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            <ucd:ucd>pmDE</ucd:ucd>
            <stc:CoordSystemRef qidRef="coords_w10_RA_1100A"/>
            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
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            <au:units name="arcsec">
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            <q:float noDataValue="-99.99" precision="2" width="6"/>
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          <col:property name="o_RAh" description="Number of observations - in RA" qid="w25_o_RAh">
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              <q:refQuantity qidRef="w25_o_RAh"/>
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            <u:unitless/>
            <q:integer noDataValue="-99" width="3" type="decimal"/>
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          <col:property name="o_DEd" description="Number of observations - DEc" qid="w25_o_DEd">
            <cha:limits>
              <q:refQuantity qidRef="w25_o_DEd"/>
              <cha:min>5</cha:min>
              <cha:max>145</cha:max>
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            <q:axes>
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            <u:unitless/>
            <q:integer noDataValue="-99" width="3" type="decimal"/>
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          <col:property name="date_RA" description="Mean date of observations - in RA" qid="w25_date_RA">
            <cha:limits>
              <q:refQuantity qidRef="w25_date_RA"/>
              <cha:min>1931.94</cha:min>
              <cha:max>1934.06</cha:max>
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            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
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            <au:units name="yr">
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          <col:property name="date_DE" description="Mean date of observations - in DEc" qid="w25_date_DE">
            <cha:limits>
              <q:refQuantity qidRef="w25_date_DE"/>
              <cha:min>1931.94</cha:min>
              <cha:max>1933.88</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
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            <au:units name="yr">
              <au:unit>yr</au:unit>
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            <q:float noDataValue="-999.99" precision="2" width="7"/>
            <q:values fromResource="res_w25"/>
          </col:property>
          <col:property name="cat" description="The source catalog" qid="w25_cat">
            <cha:limits>
              <q:refQuantity qidRef="w25_cat"/>
              <cha:min/>
              <cha:max/>
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            <q:axes>
              <q:refQuantity qidRef="obj_w25"/>
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            <u:unitless/>
            <q:string width="5" noDataValue="     "/>
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      </cat:data>
    </cat:VOCatalog>
    <cat:VOCatalog cid="adc_cat_w50" name="w50" description="W150, W250, W350, W450, and W550">
      <dc:identifier>1100A_w50</dc:identifier>
      <h:refProvenance provenanceIdRef="history_1100A"/>
      <p:refReferences referencesIdRef="ref_1100A"/>
      <cat:data>
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              <q:refQuantity qidRef="w50_id"/>
              <cha:min>1</cha:min>
              <cha:max>14916</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <u:unitless/>
            <q:integer noDataValue="-9999" width="5" type="decimal"/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="DMzone" description="*Durchmusterung zone" qid="w50_DMzone">
            <cha:limits>
              <q:refQuantity qidRef="w50_DMzone"/>
              <cha:min>-39</cha:min>
              <cha:max>+89</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <au:units name="deg">
              <au:unit>deg</au:unit>
            </au:units>
            <q:integer noDataValue="-99" width="3" type="decimal"/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="DMno" description="Durchmusterung number" qid="w50_DMno">
            <cha:limits>
              <q:refQuantity qidRef="w50_DMno"/>
              <cha:min>0</cha:min>
              <cha:max>19790</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <u:unitless/>
            <q:integer noDataValue="-9999" width="5" type="decimal"/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="rem" description="[ *] Note in DM catalog" qid="w50_rem">
            <cha:limits>
              <q:refQuantity qidRef="w50_rem"/>
              <cha:min/>
              <cha:max/>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
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            <u:unitless/>
            <q:string width="1" noDataValue=" "/>
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          </col:property>
          <col:property name="mag" description="?Magnitude" qid="w50_mag">
            <cha:limits>
              <q:refQuantity qidRef="w50_mag"/>
              <cha:min>0.10</cha:min>
              <cha:max>9.70</cha:max>
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            <ucd:ucd>mag</ucd:ucd>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
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            <au:units name="mag">
              <au:unit>mag</au:unit>
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            <q:float noDataValue="-9.99" precision="2" width="5"/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="RA" description="Right Ascension (Eq: 1950.0)" qid="w50_RA">
            <cha:limits>
              <q:refQuantity qidRef="w50_RA"/>
              <cha:min>00 00 00.451</cha:min>
              <cha:max>23 59 56.149</cha:max>
            </cha:limits>
            <ucd:ucd>RAhms</ucd:ucd>
            <stc:CoordSystemRef qidRef="coords_w10_RA_1100A"/>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <u:unitless/>
            <q:string width="12" noDataValue="            "/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="pmRA" description="*Annual proper motion in right ascension" qid="w50_pmRA">
            <cha:limits>
              <q:refQuantity qidRef="w50_pmRA"/>
              <cha:min>-0.409</cha:min>
              <cha:max>+0.558</cha:max>
            </cha:limits>
            <ucd:ucd>pmRA</ucd:ucd>
            <stc:CoordSystemRef qidRef="coords_w10_RA_1100A"/>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <au:units name="s">
              <au:unit>s</au:unit>
            </au:units>
            <q:float noDataValue="-9.999" precision="3" width="6"/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="DE" description="Declination (Eq: 1950.0)" qid="w50_DE">
            <cha:limits>
              <q:refQuantity qidRef="w50_DE"/>
              <cha:min>-39 04 05.47</cha:min>
              <cha:max>+89 03 03.67</cha:max>
            </cha:limits>
            <ucd:ucd>DEdms</ucd:ucd>
            <stc:CoordSystemRef qidRef="coords_w10_RA_1100A"/>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <u:unitless/>
            <q:string width="12" noDataValue="            "/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="pmDE" description="*Annual proper motion in declination" qid="w50_pmDE">
            <cha:limits>
              <q:refQuantity qidRef="w50_pmDE"/>
              <cha:min>-5.81</cha:min>
              <cha:max>10.00</cha:max>
            </cha:limits>
            <ucd:ucd>pmDE</ucd:ucd>
            <stc:CoordSystemRef qidRef="coords_w10_RA_1100A"/>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <au:units name="arcsec">
              <au:unit>arcsec</au:unit>
            </au:units>
            <q:float noDataValue="-99.99" precision="2" width="6"/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="o_RAh" description="Number of observations - in RA" qid="w50_o_RAh">
            <cha:limits>
              <q:refQuantity qidRef="w50_o_RAh"/>
              <cha:min>0</cha:min>
              <cha:max>195</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <u:unitless/>
            <q:integer noDataValue="-99" width="3" type="decimal"/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="o_DEd" description="Number of observations - DEc" qid="w50_o_DEd">
            <cha:limits>
              <q:refQuantity qidRef="w50_o_DEd"/>
              <cha:min>1</cha:min>
              <cha:max>195</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <u:unitless/>
            <q:integer noDataValue="-99" width="3" type="decimal"/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="date_RA" description="Mean date of observations - in RA" qid="w50_date_RA">
            <cha:limits>
              <q:refQuantity qidRef="w50_date_RA"/>
              <cha:min>1937.74</cha:min>
              <cha:max>1972.00</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <au:units name="yr">
              <au:unit>yr</au:unit>
            </au:units>
            <q:float noDataValue="-999.99" precision="2" width="7"/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="date_DE" description="Mean date of observations - in DEc" qid="w50_date_DE">
            <cha:limits>
              <q:refQuantity qidRef="w50_date_DE"/>
              <cha:min>1937.75</cha:min>
              <cha:max>1972.00</cha:max>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <au:units name="yr">
              <au:unit>yr</au:unit>
            </au:units>
            <q:float noDataValue="-999.99" precision="2" width="7"/>
            <q:values fromResource="res_w50"/>
          </col:property>
          <col:property name="cat" description="The source catalog" qid="w50_cat">
            <cha:limits>
              <q:refQuantity qidRef="w50_cat"/>
              <cha:min/>
              <cha:max/>
            </cha:limits>
            <q:axes>
              <q:refQuantity qidRef="obj_w50"/>
            </q:axes>
            <u:unitless/>
            <q:string width="5" noDataValue="     "/>
            <q:values fromResource="res_w50"/>
          </col:property>
        </col:object>
      </cat:data>
    </cat:VOCatalog>
  </adc:data>
</adc:VO_Catalog_ADC>
