Star in the constellation Carina
V520 Carinae Observation dataEpoch J2000 Equinox J2000 Constellation Carina Right ascension 10h 43m 32.28949s [ 2] Declination −60° 33′ 59.8348″[ 2] Apparent magnitude (V)+4.58[ 3] (4.50 to 4.59) Characteristics Spectral type K4III[ 4] B−Vcolor index ± 0.059[ 3] Variable type Lc: [ 5] Astrometry Radial velocity (Rv )± 0.3[ 3] km/s Proper motion (μ)RA: mas /yr [ 2] Dec.: +2.872mas /yr [ 2] Parallax (π)2.2008± 0.1027 mas [ 2] Distance +68 ly +21 pc )[ 6] Absolute magnitude (MV )−3.63[ 3] Details Mass ± 0.1[ 7] M ☉ Radius 217[ 8] R ☉ Luminosity 3,745[ 8] L ☉ Temperature 12,758[ 8] K Age ± 5.1[ 7] Myr Other designations w Car ,V520 Car ,NSV 4951CD −59°3262FK5 2524GC 14762HD 93070HIP 52468HR 4200SAO 251090[ 9] Database references SIMBAD data
V520 Carinae is a single[ 10] star in the southernconstellation ofCarina . It has theBayer designation w Carinae , whileV520 Carinae is avariable star designation . The star has an orange hue and is faintly visible to thenaked eye with anapparent visual magnitude that fluctuates around +4.58.[ 3] light years from theSun based onparallax ,[ 6] radial velocity of +9 km/s.[ 3] IC 2391 moving group of co-moving stars.[ 11]
This is an aginggiant star with astellar classification of K4III,[ 4] supergiant class of K3Ib.[ 12] variable star when theHipparcos [ 13] slow irregular variable of type Lc and its brightness varies from magnitude +4.50 to +4.59 with no periodicity.[ 14] radius of the Sun , having exhausted the supply of hydrogen at itscore then cooled and expanded. Comparison with theoretical evolutionary tracks suggests it is 33 million years old with 7.9 times themass of the Sun .[ 7] luminosity of the Sun from its enlargedphotosphere at aneffective temperature of 3,745 K.[ 8]
^ "Hipparcos Tools Interactive Data Access" .Hipparcos . ESA. Retrieved8 December 2021 .^a b c d 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 c d e f 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 Houk, Nancy; Cowley, A. P. (1979),Michigan catalogue of two-dimensional spectral types for the HD stars , vol. 1, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan,Bibcode :1978mcts.book.....H . ^ 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 Bailer-Jones, C. A. L.; Rybizki, J.; Fouesneau, M.; Demleitner, M.; Andrae, R. (2021-03-01), "Estimating distances from parallaxes. V: Geometric and photogeometric distances to 1.47 billion stars in Gaia Early Data Release 3",The Astronomical Journal ,161 (3): 147,arXiv :2012.05220 Bibcode :2021AJ....161..147B ,doi :10.3847/1538-3881/abd806 ISSN 0004-6256 here .^a b c Tetzlaff, N.; et al. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun",Monthly Notices of the Royal Astronomical Society ,410 (1):190– 200,arXiv :1007.4883 Bibcode :2011MNRAS.410..190T ,doi :10.1111/j.1365-2966.2010.17434.x S2CID 118629873 . ^a b c d Healy, Sarah; Horiuchi, Shunsaku; Colomer Molla, Marta; Milisavljevic, Dan; Tseng, Jeff; Bergin, Faith; Weil, Kathryn; Tanaka, Masaomi; Otero, Sebastián (2024-04-01), "Red supergiant candidates for multimessenger monitoring of the next Galactic supernova",Monthly Notices of the Royal Astronomical Society ,529 (4):3630– 3650,arXiv :2307.08785 Bibcode :2024MNRAS.529.3630H ,doi :10.1093/mnras/stae738 ISSN 0035-8711 ^ "V520 Car" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2020-02-19 .^ 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 . ^ Montes, D.; et al. (November 2001), "Late-type members of young stellar kinematic groups - I. Single stars",Monthly Notices of the Royal Astronomical Society 328 (1):45– 63,arXiv :astro-ph/0106537 Bibcode :2001MNRAS.328...45M ,doi :10.1046/j.1365-8711.2001.04781.x S2CID 55727428 . ^ Humphreys, R. M. (June 1970), "The space distribution and kinematics of supergiants",Astronomical Journal ,75 :602– 623,Bibcode :1970AJ.....75..602H ,doi :10.1086/110995 ^ Kazarovets, E. V.; Samus, N. N.; Durlevich, O. V.; Frolov, M. S.; Antipin, S. V.; Kireeva, N. N.; Pastukhova, E. N. (January 1999)."The 74th Special Name-list of Variable Stars" (PDF) .Information Bulletin on Variable Stars .4659 :1– 27.Bibcode :1999IBVS.4659....1K . Retrieved11 January 2025 . ^ "V520 Carinae" ,Variable Star Index , retrieved2020-02-20
