1257A James Marcout CDS Patricia Bauer CDS 1995-01-26 CDS staff CDS 11 rue de l'Université 67000 Strasbourg France ????-??-?? ADC staff ADC Code 630, Goddard Space Flight Center/NASA 20771 Greenbelt Maryland United States of America 2002-07-30 UMd-ADC staff UMd Astronomical Data Center Department of Astronomy, University of Maryland 20742 College Park Maryland United States of America thomas@astro.umd.edu http://archive.astro.umd.edu/archive 2005-09-30T05:03:51-04:00 J2000.0 positions and proper motions of 257 stars in the central part of the Praesepe astrometric standard region J J Wang P F Jiang Acta Astron. Sinica. 32 176 1991-??-?? 1991AcASn..32..176W High-precision study of proper motions and membership of 924 stars in the central region of Praesepe. J J Wang L Chen J H Zhao P F Jiang Astron. Astrophys. Suppl. Ser. 113 419 1995-??-?? 1995A&AS..113..419W Radial Velocities in Open Clusters (Mermilliod 1979) Mermilliod III/55: Radial Velocities in Open Clusters (Mermilliod 1979)3055 Lithium in Praesepe (Soderblom+, 1993) Soderblom J/AJ/106/1080: Lithium in Praesepe (Soderblom+, 1993)J/AJ/106/1080 ROSAT study of Praesepe (Randish+, 1995) Randish J/A+A/298/115: ROSAT study of Praesepe (Randish+, 1995)J/A+A/298/115 Very low mass stars in Praesepe (Hambly+, 1995) Hambly J/A+AS/109/29: Very low mass stars in Praesepe (Hambly+, 1995)J/A+AS/109/29 Delta Sct stars in Praesepe (Pena+ 1998) Pena J/A+AS/129/9: Delta Sct stars in Praesepe (Pena+ 1998)J/A+AS/129/9 Binaries in the Praesepe and Coma clusters (Abt+, 1999) Abt J/ApJ/521/682: Binaries in the Praesepe and Coma clusters (Abt+, 1999)J/ApJ/521/682 1257A_catalog 1 924 50 353 1 784 88 282 6.30 15.99 Mag mag -0.11 1.59 mag 8 37 08.509 8 43 38.136 RAhms LST yr 2000.0 3 false h min s +18 54 11.68 +20 26 22.34 DEdms deg arcmin arcsec -731 474 pmRA mas yr 1 156 mas yr -1717 350 pmDE mas yr 1 181 mas yr 0.00 1.00 0 1 1257A_cat1991 1 257 50 353 8 37 22.2316 8 43 35.5496 RAhms h min s 0 160 s +18 54 41.673 +20 22 30.901 DEdms deg arcmin arcsec 00 253 arcsec -0.005080 0.002133 pmRA s yr 0 1105 s yr -0.17167 0.03231 pmDE arcsec yr 0 1806 arcsec yr