Astronomy:6 Corvi
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Short description: Star in the constellation Corvus
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Corvus[1] |
| Right ascension | 12h 23m 21.58766s[2] |
| Declination | −24° 50′ 26.4076″[2] |
| Apparent magnitude (V) | 5.66[1] |
| Characteristics | |
| Evolutionary stage | giant |
| Spectral type | K1 III[3] |
| B−V color index | 1.153±0.005[1] |
| Astrometry | |
| Radial velocity (Rv) | −2.42±0.15[2] km/s |
| Proper motion (μ) | RA: −19.328[2] mas/yr Dec.: −20.650[2] mas/yr |
| Parallax (π) | 9.5644 ± 0.1116[2] mas |
| Distance | 341 ± 4 ly (105 ± 1 pc) |
| Absolute magnitude (MV) | 0.63[1] |
| Details | |
| Mass | 1.57[4] M☉ |
| Radius | 13.8[5] R☉ |
| Luminosity | 69[5] L☉ |
| Surface gravity (log g) | 2.88[6] cgs |
| Temperature | 5,200[6] K |
| Metallicity [Fe/H] | 0.02[6] dex |
| Rotational velocity (v sin i) | 4.17[7] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
6 Corvi is a single[9] star in the southern constellation of Corvus,[8] located 341 light years away from the Sun.[2] It is visible to the naked eye as a faint, orange[10]-hued star with an apparent visual magnitude of 5.66.[1] This object is moving closer to the Earth with a heliocentric radial velocity of −2.4 km/s.[2] It is an evolved giant star with a stellar classification of K1 III.[3] The star has expanded to 13.8 times the Sun's radius and is radiating 69 times the luminosity of the Sun from its enlarged photosphere[5] at an effective temperature of 5,200 K.[6]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A XHIP record for this object at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 3.0 3.1 Houk, Nancy; Smith-Moore, M. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 4, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode: 1988mcts.book.....H.
- ↑ Charbonnel, C.; Lagarde, N.; Jasniewicz, G.; North, P. L.; Shetrone, M.; Krugler Hollek, J.; Smith, V. V.; Smiljanic, R. et al. (2020). "Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era". Astronomy and Astrophysics 633: A34. doi:10.1051/0004-6361/201936360. Bibcode: 2020A&A...633A..34C.
- ↑ 5.0 5.1 5.2 Hon, Marc; Huber, Daniel; Kuszlewicz, James S.; Stello, Dennis; Sharma, Sanjib; Tayar, Jamie; Zinn, Joel C.; Vrard, Mathieu et al. (2021). "A "Quick Look" at All-sky Galactic Archeology with TESS: 158,000 Oscillating Red Giants from the MIT Quick-look Pipeline". The Astrophysical Journal 919 (2): 131. doi:10.3847/1538-4357/ac14b1. Bibcode: 2021ApJ...919..131H.
- ↑ 6.0 6.1 6.2 6.3 Huson, Dylan; Cowan, Indiana; Sizemore, Logan; Kounkel, Marina; Hutchinson, Brian (2025). "Gaia Net: Toward Robust Spectroscopic Parameters of Stars of all Evolutionary Stages". The Astrophysical Journal 984 (1): 58. doi:10.3847/1538-4357/adc2fa. Bibcode: 2025ApJ...984...58H.
- ↑ Perdelwitz, V.; Trifonov, T.; Teklu, J. T.; Sreenivas, K. R.; Tal-Or, L. (2024). "Analysis of the public HARPS/ESO spectroscopic archive. Ca II H&K time series for the HARPS radial velocity database". Astronomy and Astrophysics 683. doi:10.1051/0004-6361/202348263. Bibcode: 2024A&A...683A.125P.
- ↑ 8.0 8.1 "6 Crv". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=6+Crv.
- ↑ 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, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E.
- ↑ Arnold, H. J. P. et al. (1999), The Photographic Atlas of the Stars, Boca Raton, Florida: CRC Press, p. 140, ISBN 978-0-7503-0654-6, https://books.google.com/books?id=YjcvJUfnWBAC&pg=PA140.
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