Astronomy:HD 83095
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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[1] mas |
| Distance | 740 ± 10 ly (226 ± 4 pc) |
| Absolute magnitude (MV) | −1.45[2] |
| Details | |
| Mass | 1.3[4] M☉ |
| Radius | 59[5] R☉ |
| Luminosity | 826[6] L☉ |
| Surface gravity (log g) | 1.52[4] cgs |
| Temperature | 4,038[5] K |
| Metallicity [Fe/H] | −0.32[4] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
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
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A.
- ↑ 3.0 3.1 Houk, Nancy (1979). Michigan catalogue of two-dimensional spectral types for the HD stars. 1. Ann Arbor, Michigan: Department of Astronomy, University of Michigan. Bibcode: 1978mcts.book.....H.
- ↑ 4.0 4.1 4.2 Khalatyan, A.; Anders, F.; Chiappini, C.; Queiroz, A. B. A.; Nepal, S.; Dal Ponte, M.; Jordi, C.; Guiglion, G. et al. (2024). "Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost". Astronomy and Astrophysics 691: A98. doi:10.1051/0004-6361/202451427. Bibcode: 2024A&A...691A..98K.
- ↑ 5.0 5.1 Stassun, Keivan G. et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal 158 (4): 138. doi:10.3847/1538-3881/ab3467. Bibcode: 2019AJ....158..138S.
- ↑ 6.0 6.1 Fetherolf, Tara; Pepper, Joshua; Simpson, Emilie; Kane, Stephen R.; Močnik, Teo; English, John Edward; Antoci, Victoria; Huber, Daniel et al. (2023). "Variability Catalog of Stars Observed during the TESS Prime Mission". The Astrophysical Journal Supplement Series 268 (1): 4. doi:10.3847/1538-4365/acdee5. Bibcode: 2023ApJS..268....4F.
- ↑ "HD 83095". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+83095.
- ↑ 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. doi:10.1111/j.1365-2966.2008.13596.x. Bibcode: 2008MNRAS.389..869E.
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