5008 V/8 Space Velocity Catalogue O J Eggen Royal Obs. Bull. No. 51 ??? ??? 1962 1962RGOB...51...79E Space velocities New "post-1900" proper motions have been derived for all of the stars with known radial velocity of quality class A or B that are also contained in the General Catalog (GC, catalog <I/113>). The catalog lists the space motion vectors of the 3483 stars for which the differences between the pre- and post-1900 proper motions and the probable error of the combined values are small enough to cause less than about 5 km/s uncertainty in the total space motion based on the best available determinations of the stellar distances. In addition to the weighted means of the pre- and post-1900 proper motion components on the N30 system, the best available values of the radial velocity and the space-velocity vectors (UVW), based on these motions and on an assumed luminosity derived from considerations of all available estimates. Compared to the Table 1 of the publication, note that the following elements are missing: - the 3rd designation of Column I - the spectral classifications of Column III - all annotations of Column VIII: the uncertainty flag related to the distance modulus m-M, and also the annotations about binarity or clustering.

HD HD Cat. <III/135> designation --- GC GC Cat. <I/113> designation --- Vmag Visual magnitude mag B-V color index mag U-B (or (U-B)c) color index mag pmRA Proper motion in right ascension number=1 Proper motions are converted to N30 system (Morgan H.R., 1952, Astron. Papers Amer. Ephemeris 13, see catalog <I/80>) 10-4s/a pmDE Proper motion in declination number=1 Proper motions are converted to N30 system (Morgan H.R., 1952, Astron. Papers Amer. Ephemeris 13, see catalog <I/80>) mas/a RVel Radial velocity from Wilson's GCRV Cat. number=2 Radial velocities from the "General Catalogue of Stellar Radial Velocity", Wilson R.F., 1953 (see catalog <III/21>) km/s q_RVel Quality index on RVel number=2 Radial velocities from the "General Catalogue of Stellar Radial Velocity", Wilson R.F., 1953 (see catalog <III/21>) --- pe(pm) Probable error on proper motions number=1 Proper motions are converted to N30 system (Morgan H.R., 1952, Astron. Papers Amer. Ephemeris 13, see catalog <I/80>) mas/a Uvel Component of space velocity number=3 The space velocity components are oriented: Uvel away from the Galactic centre Vvel in the direction of the galactic rotation Vvel in the direction of the North Galactic Pole km/s Vvel Component of space velocity number=3 The space velocity components are oriented: Uvel away from the Galactic centre Vvel in the direction of the galactic rotation Vvel in the direction of the North Galactic Pole km/s Wvel Component of space velocity number=3 The space velocity components are oriented: Uvel away from the Galactic centre Vvel in the direction of the galactic rotation Vvel in the direction of the North Galactic Pole km/s DUvel Change of Uvel with distance number=4 these numbers represent the changes in the values of (Uvel, Vvel, Wvel) caused by an increase of 1kpc in the assumed distance. km/s/kpc DVvel Change of Vvel with distance number=4 these numbers represent the changes in the values of (Uvel, Vvel, Wvel) caused by an increase of 1kpc in the assumed distance. km/s/kpc DWvel Change of Wvel with distance number=4 these numbers represent the changes in the values of (Uvel, Vvel, Wvel) caused by an increase of 1kpc in the assumed distance. km/s/kpc x Direction cosine of the radial velocity number=5 These direction cosines can be computed from the old galactic coordinates l (longitude) and b (latitude) by: x = -cos(b).cos(l) y = cos(b).sin(l) z = sin(b) 10-3 y Direction cosine of the radial velocity number=5 These direction cosines can be computed from the old galactic coordinates l (longitude) and b (latitude) by: x = -cos(b).cos(l) y = cos(b).sin(l) z = sin(b) 10-3 z Direction cosine of the radial velocity number=5 These direction cosines can be computed from the old galactic coordinates l (longitude) and b (latitude) by: x = -cos(b).cos(l) y = cos(b).sin(l) z = sin(b) 10-3 m-M Distance modulus number=6 the distance modulus (m-M) is related to the distance r expressed in kpc by: 5.log(r) = (m-M) - 10 mag Francois Ochsenbein CDS 1996Jun25 UNKNOWN UNKNOWN The catalogue was originally keypunched in November 1972 in K.I.T. computer center. The original version contained a first introduction (52 lines), and one star information laid over 3 cards. It has been transformed into a one-line per star at CDS in 1996; numerous misalignments in the data columns were also corrected in the course of this transformation. V_8.xml