6_Lacertae
6 Lacertae
Star in the constellation Lacerta
6 Lacertae is a binary star[5] system in the northern constellation of Lacerta, located around 1,900 light years from the Sun.[1] It is visible to the naked eye as a dim, blue-white hued star with a combined apparent visual magnitude of 4.52.[2] The system is moving closer to the Earth with a heliocentric radial velocity of −9 km/s,[2] and is a suspected member of the Lac OB1 association.[4]
This system forms a single-lined spectroscopic binary with an orbital period of 880 days and an eccentricity of 0.3.[5] The visible component has a stellar classification of B2 IV,[3] matching a B-type subgiant star. It is about 16[6] million years old with a relatively high projected rotational velocity of 70 km/s.[10] The star has 12.5[6] times the mass of the Sun and about 7[7] times the Sun's radius. It is radiating a net 34,590[8] times the Sun's luminosity from its photosphere at an effective temperature of 21,150 K.[8]