HR 244 is a single[7] star in the constellation Cassiopeia. It has a yellow-white hue and is visible to the naked eye with an apparent visual magnitude of 4.80.[2] Based upon parallax measurements, it is located at a distance of 62 light years from the Sun, and is drifting further away with a radial velocity of +20.7 km/s;[1] around 546,000 years ago it passed within 38 light-years of the Sun.[4] The star has a relatively high proper motion, traversing the celestial sphere at the rate of 0.183 arcseconds per annum.[8]

This object is an F-type star with a stellar classification of F9V.[3] Despite the spectral class, evolutionary models show it to have left the main sequence and is now a subgiant.[1] It is 5.3[5] billion years old and is spinning with a projected rotational velocity of 8 km/s.[2] The star has 1.2[5] times the mass of the Sun and 1.8[1] times the Sun's radius. It is radiating 3.7 times the luminosity of the Sun from its photosphere at an effective temperature of 5,986 K.[1]

References