DELTA VELORUM

'Delta Velorum' (δ Vel / δ Velorum) is a star system in the constellation Vela. It is approximately 79.7 light years from Earth.
The system is composed of two binary stars. The brightest of the four stars, 'δ Velorum A', is a white A-type main sequence dwarf with an apparent magnitude of +2.02. Its binary companion, 'δ Velorum B', has a magnitude of +5.1 and is separated from the A component by 2.6 arcseconds.
The second binary system is 69 arcseconds away. It is composed of the 11th magnitude 'δ Velorum C' and the 13th magnitude 'δ Velorum D', which are 6 arcseconds apart.
This star was recently discovered to be variable by the Galileo spaceprobe at Jupiter. [1] It fluctuates by about 30% every 45 days. Curiously, being one of the brighter stars in the sky, this had not been noticed previously.
Because of precession, δ Velorum will be the South Polar Star around 9000 AD.