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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_1168" name="Perth 83, A Catalogue of Positions of 12,263 Stars" xsi:schemaLocation="http://adc.astro.umd.edu/dataset_054 dataset_054.xsd">
  <dc:identifier>1168</dc:identifier>
  <h:provenance provenanceId="history_1168">
    <h:creation>
      <h:creator>
        <ppl:person>
          <ppl:firstName>James</ppl:firstName>
          <ppl:initial>E</ppl:initial>
          <ppl:lastName>Gass</ppl:lastName>
          <ppl:institution>
            <ppl:name>SSDOO/ADC</ppl:name>
          </ppl:institution>
        </ppl:person>
      </h:creator>
      <stc:date>1997-07-23</stc:date>
      <h:acknowledgement>The author, Harwood acknowledges the collaboration of C. Bowers, S. Ewing, M. Sultana and A. Verveer.</h:acknowledgement>
    </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>2002-02-18</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>2005-09-30T05:03:08-04:00</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_1168">
    <p:reference referenceId="srf1" type="source">
      <dc:title>Perth 83, A Catalogue of Positions of 12,263 Stars</dc:title>
      <p:abstract/>
      <p:description>
        <p:para type="section"><![CDATA[General Description]]></p:para>
        <p:para><![CDATA[
   The catalogue is based on observations of the Meridian Telescope
   at the Perth Observatory, that were done between the years 1980 and
   1987. The intention of the programme has been to produce a catalogue of
   positions for all stars down to 7th magnitude, between the declinations +40
   and -90 degrees. The original programme contained 14702 stars, but this
   number was reduced due to instrumental breakdowns. The printed catalogue
   contained 12263 stars, but the mean value of dx exhibited a strong trend
   due to a systematic effect related to the magnitude. This machine readable
   version contains 12331 stars, and it was corrected for the systematic error
   as appears in the following table (to be compared with table 6 of the
   printed version).]]></p:para>
        <p:para><![CDATA[   Mean value of dx and dy calculated for each magnitude]]></p:para>
        <p:para><![CDATA[   Magnitude   Mean dx    No. of Stars   Mean dy    No. of Stars
      1.0      0.03           27        -0.05           27
      2.0     -0.10           53         0.00           53
      3.0     -0.08           96         0.00           96
      4.0      0.01          516        -0.00          516
      5.0      0.04         1421         0.02         1421
      6.0      0.10         4234        -0.02         4234
      7.0      0.04         4754        -0.01         4754
      8.0     -0.04          990         0.04          990
      9.0      0.08          221         0.23          221
     10.0      0.39           18         0.03           18]]></p:para>
      </p:description>
      <p:author>
        <ppl:person>
          <ppl:initial>D</ppl:initial>
          <ppl:initial>N</ppl:initial>
          <ppl:lastName>Harwood</ppl:lastName>
        </ppl:person>
      </p:author>
      <p:other>
        <p:name>Perth Observatory</p:name>
        <stc:date>1990-??-??</stc:date>
        <p:bibcode>1990</p:bibcode>
      </p:other>
    </p:reference>
  </p:references>
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