[2] Based upon an annual parallax shift of 2.30 mas as seen from Earth,[1] it is located roughly 1,400 light years from the Sun.

The properties indicate it may be a φ Per-like system with a Be star primary and a hot subdwarf companion of type sdO.

The close-orbiting pair may have undergone interaction in the past, leaving the subdwarf stripped down and the primary star spinning rapidly.

These Lacaille designations are now shared across the three modern constellations of Carina, Puppis, and Vela so that (except for omicron) each Greek letter is found in only one of the three.

In the Coelum Australe Stelliferum itself, this star is labelled (Latin) o Argus in puppi (Pouppe du Navire in the French edition), while ο Velorum is labelled ο (omicron) Argus (du Navire in the French edition).