G-type giant star in the constellation Andromeda
64 Andromedae, abbreviated64 And, is a single[6]star in the northernconstellation ofAndromeda. With aspectral type G8III, it is a deep-yellow colouredG-typegiant approximately 419light years fromEarth with anapparent magnitude of 5.19.[1] The star is moving closer to the Earth with a heliocentricradial velocity of –13 km/s.[1]
This star is estimated to be 350[5] million years old with a negligible rotation rate, showing aprojected rotational velocity of 0.69 km/s.[3] It has a little more than 3[5] times themass of the Sun and has expanded to 16[5] times theSun's radius. 64 And is radiating 136[5] times theluminosity of the Sun from its enlargerphotosphere at aneffective temperature of 4,944 [5]
Position and chosen constellation
[edit]As to the faint triangle and context in which the star figures see63 Andromedae.
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- ^abcdefghijklReffert, S.; Bergmann, C.; Quirrenbach, A.; Trifonov, T.; Künstler, A. (2016), "Precise radial velocities of giant stars. VII. Occurrence rate of giant extrasolar planets as a function of mass and metallicity",Astronomy & Astrophysics,574: 13,arXiv:1608.00963,Bibcode:2015A&A...574A.116R,doi:10.1051/0004-6361/201322360,hdl:10722/215277,S2CID 59334290, A116.
- ^Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems",Monthly Notices of the Royal Astronomical Society,389 (2):869–879,arXiv:0806.2878,Bibcode:2008MNRAS.389..869E,doi:10.1111/j.1365-2966.2008.13596.x,S2CID 14878976.
