Radial velocity (cz) with respect to the Local Group: vlg

The heliocentric velocity v is converted to the centroid of the Local Group vlg using the standard equation: where Equatorial coordinates (J2000) of the apex are obtained from Galactic coordinates l2=93° b2=-4° (Karachentsev & Makarov, 1996, AJ, 111, 794)

Other velocities in the database are: vrad, vopt, v, vgsr, vvir, v3k.