Astronomy:Zeta Caeli
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Short description: Star in the constellation Caelum
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Caelum |
| Right ascension | 04h 47m 49.57719s[1] |
| Declination | −30° 01′ 13.3391″[1] |
| Apparent magnitude (V) | +6.36[2] |
| Characteristics | |
| Spectral type | K0 III[3] |
| B−V color index | +1.06[2] |
| Astrometry | |
| Radial velocity (Rv) | +6.7±1.0[4] km/s |
| Proper motion (μ) | RA: +28.93[1] mas/yr Dec.: +92.67[1] mas/yr |
| Parallax (π) | 7.59 ± 0.36[1] mas |
| Distance | 430 ± 20 ly (132 ± 6 pc) |
| Absolute magnitude (MV) | +0.76[5] |
| Details | |
| Radius | 4.2[6] R☉ |
| Luminosity | 62[7] L☉ |
| Surface gravity (log g) | 2.39[8] cgs |
| Temperature | 4,620[8] K |
| Metallicity [Fe/H] | −0.22[8] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
Zeta Caeli, Latinized from ζ Caeli, is an orange-hued star in the constellation Caelum with a visual magnitude of +6.36.[2] It is an evolved K-type giant star and a member of the Milky Way's thick disk population.[8] Based upon an annual parallax shift of 7.59 mas as seen from Earth,[1] this star is located about 430 light years from the Sun.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, doi:10.1051/0004-6361:20078357, Bibcode: 2007A&A...474..653V.
- ↑ 2.0 2.1 2.2 Cousins, A. W. J. et al. (1966), "Photoelectric magnitudes and colours of southern stars, II", Royal Observatory Bulletins 121: 1, Bibcode: 1966RGOB..121....1C.
- ↑ Houk, Nancy (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, 3, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode: 1982mcts.book.....H.
- ↑ de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics 546: 14, doi:10.1051/0004-6361/201219219, A61, Bibcode: 2012A&A...546A..61D.
- ↑ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters 38 (5): 331, doi:10.1134/S1063773712050015, Bibcode: 2012AstL...38..331A.
- ↑ Pasinetti Fracassini, L. E.; Pastori, L.; Covino, S.; Pozzi, A. (2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics 367 (2): 521, doi:10.1051/0004-6361:20000451, Bibcode: 2001A&A...367..521P.
- ↑ McDonald, I. et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society 427 (1): 343–57, doi:10.1111/j.1365-2966.2012.21873.x, Bibcode: 2012MNRAS.427..343M.
- ↑ 8.0 8.1 8.2 8.3 Meléndez, J. et al. (June 2008), "Chemical similarities between Galactic bulge and local thick disk red giant stars", Astronomy and Astrophysics 484 (3): L21–L25, doi:10.1051/0004-6361:200809398, Bibcode: 2008A&A...484L..21M.
- ↑ "zet Cae". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=zet+Cae.
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