Μ_Ophiuchi
Mu Ophiuchi
Star in the constellation Ophiuchus
μ Ophiuchi, Latinized as Mu Ophiuchi, is a solitary,[10] blue-white hued star in the equatorial constellation of Ophiuchus. It is visible to the naked as a faint point of light with an apparent visual magnitude of 4.62.[2] This object is located approximately 760 light years away from the Sun based on parallax,[5] but is drifting closer with a radial velocity of −18.5 km/s.[4]
This object has a stellar classification of B8II-IIIp:Mn,[3] showing a luminosity class with mixed traits of a giant or bright giant star. The suffix notation indicates it is a candidate chemically peculiar star with an overabundance of manganese in its spectrum. It may be a mercury-manganese star.[11] This object has 11 times the radius of the Sun and is radiating nearly 400 times the Sun's luminosity from its photosphere at an effective temperature of 7,748 K.[1] It is spinning with a projected rotational velocity of 95 km/s.[8]
In 2006, a new nearby star cluster, Mamajek 2 (/ˈmæmədʒɛk/), was discovered. Mu Ophiuchi is a candidate member.[12] The cluster has an estimated age of 120±25 million years.[13]