Binary star in the constellation Camelopardalis
HD 58425 , also known asHR 2830 , is anastrometric binary [ 12] (100% chance[ 13] ) located in the northerncircumpolar constellation Camelopardalis . It is faintly visible to thenaked eye as an orang point of light at anapparent magnitude of 5.64.[ 3] Based onparallax measurements fromGaia DR3 , the system is estimated to be 470light years away fromEarth .[ 2] It appears to be rapidly receding from theSun , having a heliocentricradial velocity of 58.6 km/s .[ 6]
The visible component is an evolved,RGB star with astellar classification of K2 III.[ 4] It has 1.74 times themass of the Sun and is said to be 3.55billion years old.[ 7] At this age, the object has expanded to 24.7 times theradius of the Sun [ 8] and now radiates nearly 200 times theluminosity of the Sun [ 9] from its enlargedphotosphere at aneffective temperature of 4,479 K .[ 8] HD 58425 A has aniron abundance only 38% that of the Sun's,[ 10] making it metal deficient.
^a b Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation".Astronomy Letters .38 (5):331– 346.arXiv :1108.4971 .Bibcode :2012AstL...38..331A .doi :10.1134/S1063773712050015 .eISSN 1562-6873 .ISSN 1063-7737 .S2CID 119257644 . ^a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023)."Gaia Data Release 3. Summary of the content and survey properties" .Astronomy and Astrophysics .674 : A1.arXiv :2208.00211 .Bibcode :2023A&A...674A...1G .doi :10.1051/0004-6361/202243940 .S2CID 244398875 . Gaia DR3 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 Adams, Walter S.; Joy, Alfred H.; Humason, Milton L.; Brayton, Ada Margaret (April 1935)."The Spectroscopic Absolute Magnitudes and Parallaxes of 4179 Stars" .The Astrophysical Journal .81 : 187.Bibcode :1935ApJ....81..187A .doi :10.1086/143628 .eISSN 1538-4357 .ISSN 0004-637X . ^ Haggkvist, L.; Oja, T. (1970). "Results of BV photometry 1969-70 (Uppsala refractor)".Private Communication .Bibcode :1970Priv.........0H . ^a b Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (January 2005)."Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters" .Astronomy and Astrophysics .430 : 165.arXiv :astro-ph/0409579 .Bibcode :2005A&A...430..165F .doi :10.1051/0004-6361:20041272 .S2CID 17804304 . ^a b c Feuillet, Diane K.; Bovy, Jo; Holtzman, Jon; Girardi, Léo; MacDonald, Nick; Majewski, Steven R.; Nidever, David L. (20 January 2016)."Determining Ages of APOGEE Giants with Known Distances" .The Astrophysical Journal .817 (1): 40.arXiv :1511.04088 .Bibcode :2016ApJ...817...40F .doi :10.3847/0004-637X/817/1/40 .eISSN 1538-4357 . ^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 Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R.; Palacios, A.; Ottoni, G. (January 2020)."Lithium in red giant stars: Constraining non-standard mixing with large surveys in theGaia era" .Astronomy & Astrophysics .633 : A34.arXiv :1910.12732 .Bibcode :2020A&A...633A..34C .doi :10.1051/0004-6361/201936360 .eISSN 1432-0746 .ISSN 0004-6361 . ^a b c Sprague, Dani; et al. (8 March 2022)."APOGEE Net: An Expanded Spectral Model of Both Low-mass and High-mass Stars" .The Astronomical Journal .163 (4): 152.arXiv :2201.03661 .Bibcode :2022AJ....163..152S .doi :10.3847/1538-3881/ac4de7 .eISSN 1538-3881 .ISSN 0004-6256 . ^ "HD 58425" .SIMBAD .Centre de données astronomiques de Strasbourg . Retrieved21 September 2022 .^ Eggleton, P. P.; Tokovinin, A. A. (11 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 .eISSN 1365-2966 .ISSN 0035-8711 . ^ Frankowski, A.; Jancart, S.; Jorissen, A. (19 December 2006)."Proper-motion binaries in the Hipparcos catalogue" .Astronomy & Astrophysics .464 (1):377– 392.arXiv :astro-ph/0612449 .Bibcode :2007A&A...464..377F .doi :10.1051/0004-6361:20065526 .eISSN 1432-0746 .ISSN 0004-6361 .