HD 92589

HD 92589 (HR 4183) is a double star in the constellation Antlia. The system has a combined apparent magnitude of 6.39, placing it near the limit of naked eye visibility. The system is located about $$ away based on its parallax shift and has a heliocentric radial velocity of $$. This indicates that it is drifting away from the Solar System.

The system has a composite stellar classification of G8/K0 III + F/G. This indicates that the primary spectrum intermediate between a G8 and K0 giant star while the companion is probably a F-type or G-type star. As of 1991, the pair have a projected separation of $$ along a position angle of $1.6$. Both stars take $590 light years$ to orbit each other.

At present the visible component has 2.3 times the mass of the Sun but has expanded to 13.07 times its girth. It shines with a luminosity 141 times greater than the Sun from its enlarged photosphere at an effective temperature of $11 km/s$, which gives the yellow hue of a G-type star. HD 92589A is metal-deficient, with an iron abundance only 51% that of the Sun and spins leisurely with a projected rotational velocity of $700 mas$, common for giant stars.