Star in the constellation Pisces
HD 6 is astar in theequatorial constellation ofPisces , and is located a couple of degrees southeast of the intersection between theecliptic and thecelestial equator . It is a yellow-hued star that is just barely visible to the naked eye with anapparent visual magnitude of 6.3.[ 3] light years from theSun based onparallax ,[ 2] radial velocity ofkm/s [ 7] absolute magnitude of 0.62.[ 1]
Anevolved red giant with astellar classification K0 III,[ 5] billion years ,[ 8] red clump giant on thehorizontal branch that is engaged incore helium fusion .[ 4] mass of the Sun [ 8] [ 9] Sun's radius . The star is radiating 72 times theluminosity of the Sun [ 10] photosphere at aneffective temperature of 4,807K .[ 9]
^a b c Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation",Astronomy Letters ,38 (5): 331,arXiv :1108.4971 Bibcode :2012AstL...38..331A ,doi :10.1134/S1063773712050015 ,S2CID 119257644 . ^a b c d e Brown, A. G. A. ; et al. (Gaia collaboration) (2021)."Gaia Early Data Release 3: Summary of the contents and survey properties" .Astronomy & Astrophysics 649 : A1.arXiv :2012.01533 Bibcode :2021A&A...649A...1G .doi :10.1051/0004-6361/202039657 S2CID 227254300 . (Erratum: doi :10.1051/0004-6361/202039657e ) . Gaia EDR3 record for this source atVizieR .^a b Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars".Astronomy and Astrophysics .355 :L27 – L30 .Bibcode :2000A&A...355L..27H .ISSN 0004-6361 . ^a b c d Tautvaišienė, G.; et al. (March 2013), "Red clump stars of the Milky Way - laboratories of extra-mixing",Monthly Notices of the Royal Astronomical Society ,430 (1):621– 627,arXiv :1304.4393 Bibcode :2013MNRAS.430..621T ,doi :10.1093/mnras/sts663 S2CID 119211439 . ^a b Houk, N.; Swift, C. (1999), "Michigan catalogue of two-dimensional spectral types for the HD Stars",Michigan Spectral Survey ,5 ,Bibcode :1999MSS...C05....0H . ^a b Cousins, A. W. J. (1971). "Photometric standard stars".Royal Observatory Annals .7 .Bibcode :1971ROAn....7.....C . ^a b Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system".Astronomy Letters .32 (11):759– 771.arXiv :1606.08053 Bibcode :2006AstL...32..759G .doi :10.1134/S1063773706110065 .eISSN 1562-6873 .ISSN 1063-7737 .S2CID 119231169 . ^a b c d Demarque, Pierre; Woo, Jong-Hak; Kim, Yong-Cheol; Yi, Sukyoung K. (December 2004)."Y 2 Isochrones with an Improved Core Overshoot Treatment" .The Astrophysical Journal Supplement Series .155 (2):667– 674.arXiv :astro-ph/0409024 Bibcode :2004ApJS..155..667D .doi :10.1086/424966 eISSN 1538-4365 .ISSN 0067-0049 . ^a b c d Stassun, Keivan G.; et al. (9 September 2019)."The RevisedTESS Input Catalog and Candidate Target List" .The Astronomical Journal .158 (4): 138.arXiv :1905.10694 Bibcode :2019AJ....158..138S .doi :10.3847/1538-3881/ab3467 eISSN 1538-3881 . ^a b Luck, R. Earle (25 August 2015). "Abundances in the Local Region. I. G and K Giants".The Astronomical Journal .150 (3): 88.arXiv :1507.01466 Bibcode :2015AJ....150...88L .doi :10.1088/0004-6256/150/3/88 .eISSN 1538-3881 .ISSN 0004-6256 .S2CID 118505114 . ^ Fekel, Francis C.; Watson, Lyndon C. (November 1998)."A Search for Lithium-rich Giants among Stars with Infrared Excesses" .The Astronomical Journal .116 (5):2466– 2474.Bibcode :1998AJ....116.2466F .doi :10.1086/300614 ISSN 0004-6256 . ^ "HD 6" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2020-07-02 .
