Nu Mensae

Nu Mensae, Latinized from ν Mensae, is a solitary star situated in the southern circumpolar constellation Mensa. It has an apparent magnitude of 5.76, making it faintly visible to the naked eye. The star is relatively close at a distance of 176 light years but is receding with a heliocentric radial velocity of $5.76$.

Nu Mensae has a stellar classification of F0/2 III, indicating that it is a giant star with a spectrum intermediate between that of an F0 and F2 star. The star has an angular diameter of $9.1$, and a radius 2.39 times that of the Sun at its estimated distance. At present it has 169% the mass of the Sun and shines at 11.5 times the luminosity of the Sun at an effective temperature of $6,921$, giving it a white glow with a yellow tint. Despite an age of 1.7 billion years, Nu Mensae spins rapidly with a projected rotational velocity of $108$ and is slightly metal deficient relative to the Sun.