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HD 83095

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This article is about H Carinae. For h Carinae, see HD 83183.
HD 83095
Observation data
Epoch J2000      Equinox J2000
Constellation Carina
Right ascension 09h 31m 36.27111s[1]
Declination −73° 04′ 51.2871″[1]
Apparent magnitude (V) 5.46[2]
Characteristics
Evolutionary stage red giant branch[1]
Spectral type K4III[3]
B−V color index 1.556±0.005[2]
Astrometry
Radial velocity (Rv)+14.2±0.6[2] km/s
Proper motion (μ) RA: −24297±0.106[1] mas/yr
Dec.: +1.409±0.098[1] mas/yr
Parallax (π)4.4264±0.0866 mas[1]
Distance740 ± 10 ly
(226 ± 4 pc)
Absolute magnitude (MV)−1.45[2]
Details
Mass1.3[4] M☉
Radius59[5] R☉
Luminosity826[6] L☉
Surface gravity (log g)1.52[4] cgs
Temperature4,038[5] K
Metallicity [Fe/H]−0.32[4] dex
Other designations
H Car, CPD−72°835, FK5 362, GC 13205, HD 83095, HIP 46741, HR 3821, SAO 256634[7]
Database references
SIMBADdata

HD 83095 is a single[8] star in the southern constellation of Carina. It has the Bayer designation H Carinae; HD 83095 is the identifier from the Henry Draper Catalogue. This object has an orange hue and is dimly visible to the naked eye with an apparent visual magnitude of 5.46.[2] The star is located at a distance of approximately 740 light years from the Sun based on parallax,[1] and is drifting further away with a radial velocity of +14 km/s.[2] It has an absolute magnitude of −1.45.[2]

This is an aging K-type giant star with a stellar classification of K4III,[3] having exhausted the supply of hydrogen at its core then cooled and expanded off the main sequence. At present it has about 60 times the radius of the Sun and is radiating 826 times the Sun's luminosity from its swollen photosphere at an effective temperature of 4,038 K.[6]

References

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  1. ^ a b c d e f g 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 at VizieR.
  2. ^ 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.
  3. ^ a b Houk, Nancy (1979). Michigan catalogue of two-dimensional spectral types for the HD stars. Vol. 1. Ann Arbor, Michigan: Department of Astronomy, University of Michigan. Bibcode:1978mcts.book.....H.
  4. ^ a b c Khalatyan, A.; Anders, F.; Chiappini, C.; Queiroz, A. B. A.; Nepal, S.; Dal Ponte, M.; Jordi, C.; Guiglion, G.; Valentini, M.; Torralba Elipe, G.; Steinmetz, M.; Pantaleoni-González, M.; Malhotra, S.; Jiménez-Arranz, Ó.; Enke, H.; Casamiquela, L.; Ardèvol, J. (2024). "Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost". Astronomy and Astrophysics. 691: A98. arXiv:2407.06963. Bibcode:2024A&A...691A..98K. doi:10.1051/0004-6361/202451427.
  5. ^ a b Stassun, Keivan G.; et al. (2019). "The Revised TESS 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.
  6. ^ a b Fetherolf, Tara; Pepper, Joshua; Simpson, Emilie; Kane, Stephen R.; Močnik, Teo; English, John Edward; Antoci, Victoria; Huber, Daniel; Jenkins, Jon M.; Stassun, Keivan; Twicken, Joseph D.; Vanderspek, Roland; Winn, Joshua N. (2023). "Variability Catalog of Stars Observed during the TESS Prime Mission". The Astrophysical Journal Supplement Series. 268 (1): 4. arXiv:2208.11721. Bibcode:2023ApJS..268....4F. doi:10.3847/1538-4365/acdee5.
  7. ^ "HD 83095". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-07-10.
  8. ^ 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.
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