47 Andromedae is abinary star[2] system in the northernconstellation ofAndromeda. The designation is from the star catalogue ofJohn Flamsteed, first published in 1712. The system has a combinedapparent visual magnitude of 5.60,[2] which is just bright enough to be faintly visible to the naked eye under good seeing conditions. The distance to this system, as determined from an annualparallax shift of 15.9805 mas,[1] is about 204 light years. It is moving away from the Sun with a heliocentricradial velocity of +13.3 km/s.[7]
^abCowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications",Astronomical Journal,74:375–406,Bibcode:1969AJ.....74..375C,doi:10.1086/110819.
^abcLester, Kathryn V.; Fekel, Francis C.; Muterspaugh, Matthew; Gies, Douglas R.; Schaefer, Gail H.; Farrington, Christopher D.; Guo, Zhao; Matson, Rachel A.; Monnier, John D.; ten Brummelaar, Theo; Sturmann, Judit; Weiss, Samuel A. (August 2020), "Visual Orbits of Spectroscopic Binaries with the CHARA Array. III. HD 8374 and HD 24546",The Astronomical Journal,160 (2): 58,arXiv:2005.00546,Bibcode:2020AJ....160...58L,doi:10.3847/1538-3881/ab8f95,ISSN0004-6256.
^Plaskett, J. S.; Young, R. K. (February 1919). "Notes from the Dominion Astrophysical Observatory, Victoria, B.C.. Second list of spectroscopic binaries".Journal of the Royal Astronomical Society of Canada.13:59–64.Bibcode:1919JRASC..13...59P.
