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Star in the constellation Carina
This article is about u Carinae. For U Carinae, see
HD 95109 .
HD 94510 is a single[ 9] star in the southern constellation of Carina , positioned near the northern constellation border with Vela . It has the Bayer designation u Carinae ; HD 94520 is the identifier from the Henry Draper Catalogue apparent visual magnitude that fluctuates around +3.78.[ 2] light-years from the Sun based on parallax ,[ 1] radial velocity of +8 km/s.[ 2]
This is a K-type star in the subgiant [ 4] stellar classification of K0IV,[ 5] core and is evolving into a giant . HD 94510 is a suspected variable star with a brightness that has been measured varying from magnitude 3.75 down to 3.80.[ 3] [ 4] mass of the Sun and has expanded to nearly eight[ 6] Sun's radius . The star is radiating 31 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of K [ 6]
^ a b c d e f van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics , 474 (2): 653–664, arXiv :0708.1752 Bibcode :2007A&A...474..653V , doi :10.1051/0004-6361:20078357 , S2CID 18759600 . ^ a b c d e f g 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 Samus, N. N.; et al. (2017), "General Catalogue of Variable Stars", Astronomy Reports , 5.1, 61 (1): 80–88, Bibcode :2017ARep...61...80S , doi :10.1134/S1063772917010085 , S2CID 125853869 . ^ a b c d Edvardsson, B. (January 1988), "Spectroscopic surface gravities and chemical compositions for 8 nearby single sub-giants.", Astronomy and Astrophysics , 190 : 148–166, Bibcode :1988A&A...190..148E . ^ a b Gray, R. O.; et al. (July 2006), "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample", The Astronomical Journal 132 (1): 161–170, arXiv :astro-ph/0603770 Bibcode :2006AJ....132..161G , doi :10.1086/504637 , S2CID 119476992 . ^ a b c d e Brown, A. G. A. ; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties" . Astronomy & Astrophysics 616 . A1. arXiv :1804.09365 Bibcode :2018A&A...616A...1G doi :10.1051/0004-6361/201833051 Gaia DR2 record for this source at VizieR .^ Alves, S.; et al. (April 2015), "Determination of the spectroscopic stellar parameters for 257 field giant stars", Monthly Notices of the Royal Astronomical Society , 448 (3): 2749–2765, arXiv :1503.02556 Bibcode :2015MNRAS.448.2749A , doi :10.1093/mnras/stv189 ^ "HD 94510" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2018-07-10 .^ Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society , 389 (2): 869, arXiv :0806.2878 Bibcode :2008MNRAS.389..869E , doi :10.1111/j.1365-2966.2008.13596.x S2CID 14878976 .
