Yale Astrometry Group

* this page is currently undergoing major revision, important links can be found below *
 
 

SPM Catalog 1.0 positions, absolute proper motions, and BV photometry for an extended region at the South Galactic Pole
SPM Catalog 1.1 re-reduction of the SPM 1.0 at the SGP, with an improved treatment of the magnitude equation correction
SPM Catalog 2.0 positions, absolute proper motions, and BV photometry for declination zones -25 to -40
SPM Catalog 3 positions, absolute proper motions, and BV photometry for declination zones -25 to -40, approximately complete to V=17.5


NGC 2451 positions, relative proper motions, and BV photometry for a region around the open cluster NGC 2451

NGC 188 (Lick) positions, absolute proper motions, and BV photometry for a region around the open cluster NGC 188, (based on Lick astrograph observations)

NGC 188 (4m) positions, absolute proper motions, membership estimates, and BV (CCD) photometry for a region around the open cluster NGC 188, (based primarily on KPNO 4-m observations, to V~21)

IC 2391
positions, relative proper motions, and photographic V-photometry of 6991 stars in the region of open cluster IC 2391


Yale Parallax Catalog  The General Catalogue of Trigonometric Parallaxes, Fourth Edition, 1995