The visible component has a blue-white hue and is visible to the naked eye with an apparent visual magnitude of +3.84. The system is located at a distance of approximately 320 light years from the Sun based on parallax, and it is drifting further away with a radial velocity of around +25 km/s.
HD 76728 is a suspected astrometric binary star system in the constellation Carina. It has the Bayer designation c Carinae; HD 76728 is the identifier from the Henry Draper catalogue.