Delta Velorum

Delta Velorum (δ Velorum, abbreviated Delta Vel, δ Vel) is a triple star system in the southernconstellation of Vela, near the border with Carina, and is part of the False Cross. Based on parallax measurements, it is approximately 80.6 light-years (24.7 parsecs) from the Sun. It is one of the stars that at times lies near the south celestial pole due to precession.

δ Velorum consists of an eclipsing binary, designated Delta Velorum A, and a more distant third companion, Delta Velorum B. δ Velorum A's two components are themselves designated Aa (officially named Alsephina, the traditional name for the entire system) and Ab.