HR_5256
HR 5256
Star in the constellation Ursa Major
HR 5256 is a star located thirty-three[1] light-years away from the Sun in the northern circumpolar constellation of Ursa Major. It has an orange hue and is a challenge to view with the naked eye, having an apparent visual magnitude of 6.52[2] The distance to this star is very nearly 10 parsecs, so the absolute magnitude of 6.51[3] is nearly the same as the star's apparent magnitude. HR 5256 is drifting nearer to the Sun with a radial velocity of −26.4 km/s,[1] and will make its closest approach to the Sun in about 333,000±16,000 years, when it will be at a distance of 12.72 ± 0.65 light-years.[9]
This object is an ordinary K-type main-sequence star with a stellar classification of K3 V,[4] which indicates it is undergoing core hydrogen fusion. It is over five billion years of age and is spinning slowly with a projected rotational velocity of 4.6 km/s.[3] The star has an estimated 82%[3] of the Sun's mass and 78% of the Sun's radius.[6] It is radiating just 28% of the luminosity of the Sun from its photosphere at an effective temperature of 4,811 K.[3]