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74 Orionis
Single star in the constellation Orion From Wikipedia, the free encyclopedia
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74 Orionis is a single[10] star in the equatorial constellation of Orion. It has the Bayer designation k Orionis, while 74 Orionis is the Flamsteed designation. This object is visible to the naked eye as a faint, yellow-white hued point of light with an apparent visual magnitude of 5.04.[2] It is located at a distance of 64 light years from the Sun based on parallax,[1] and is drifting further away with a radial velocity of +9 km/s.[5] The star has a relatively high proper motion, traversing the celestial sphere at the rate of 0.204 arc seconds per annum.[11]
This object is an ordinary F-type main-sequence star with a stellar classification of F5V.[3] It is an estimated 2.3[6] billion years old and is spinning with a projected rotational velocity of 18.8 km/s.[8] The star has 1.4[6] times the mass of the Sun and 1.3[7] times the Sun's radius. Metallicity is near solar,[2] which indicates it has a Sun-like abundance of elements. The star is radiating three[2] times the luminosity of the Sun from its photosphere at an effective temperature of 6,595 K.[6]
74 Orionis has two visual companions: component B, with magnitude 12.5 and separation 32.1", and C, with magnitude 9.0 and separation 195.5".[12]
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