The Scorpio–Centaurus association

Abstract

The Scorpio–Centaurus association extends from about lII=356°, bII=+20° towards lower longitudes over about 90° of the southern sky. Between lII=312 and 356° it is located between latitudes +10 and +25°, and appears well detached from the more distant B-star population at lower latitudes. At longitudes below 312° it approaches and crosses the galactic plane and is seen projected against the general low latitude B-star population from which it is more difficult to separate. These features are clearly brought out by Figures 5 and 6 of the author's thesis (1946) and had been recognized earlier by others (e.g. Kapteyn 1914).