1216A I/216A Open cluster TR 10 J Stock Rev. Mex. Astron. Astrofiz. 9 127 1984 1984RMxAA...9..127S Clusters, open Proper motions Positions for 979 stars in the area of Tr 10 are derived from fifteen plates taken recently with the ICDA refractor. For the determination of proper motions nine plates of the Cape Astrographic Catalogue are used as first epoch. The results make it appear doubtful that the object is a single cluster.

Seq Running number --- RAh Right ascension Equinox=1950.0, Epoch=1982.4 h RAm Right ascension Equinox=1950.0, Epoch=1982.4 min RAs Right ascension Equinox=1950.0, Epoch=1982.4 s DE- Declination sign --- DEd Declination Equinox=1950.0, Epoch=1982.4 deg DEm Declination Equinox=1950.0, Epoch=1982.4 arcmin DEs Declination Equinox=1950.0, Epoch=1982.4 arcsec Vmag Visual magnitude derived from CIDA plates mag o_Vmag Number of images measured from CIDA plates --- PMag Photographic magnitude derived from Cape plates mag o_PMag Number of images measured on Cape plates --- pmRA Proper motion in right ascension 0.1mas/yr pmDE Proper motion in declination 0.1mas/yr Marie-Jose Wagner, Patricia Bauer CDS 1995May05 UNKNOWN UNKNOWN Keypunched at CDS * 08-Dec-1994: First archived * 05-May-1995: 7 errors detected by J.C. Mermilliod <mermio@scsun.unige.ch> in declinations of # 236, 275, 571, 613, 618, 633, 767 I_216A.xml