HD 83095
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Carina |
| Right ascension | 09h 31m 36.26853s[1] |
| Declination | −73° 04′ 51.2823″[1] |
| Apparent magnitude (V) | 5.46[2] |
| Characteristics | |
| 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: −23.568±0.176[1] mas/yr Dec.: +1.073±0.177[1] mas/yr |
| Parallax (π) | 4.5908±0.1011 mas [1] |
| Distance | 710 ± 20 ly (218 ± 5 pc) |
| Absolute magnitude (MV) | −1.45[2] |
| Details | |
| Radius | 59.53+1.44 −3.97[1] R☉ |
| Luminosity | 769.4±20.4[1] L☉ |
| Temperature | 3,940+138 −47[1] K |
| Other designations | |
| H Car, CPD−72°835, FK5 362, GC 13205, HD 83095, HIP 46741, HR 3821, SAO 256634[4] | |
| Database references | |
| SIMBAD | data |
HD 83095 is a single[5] 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 710 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 769 times the Sun's luminosity from its swollen photosphere at an effective temperature of 3,940 K.[1]
References
[edit ]- ^ a b c d e f g h i j 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.
- ^ 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 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.
- ^ "HD 83095". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2018年07月10日.
- ^ 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.