Astronomy:HD 129456
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Short description: Star in the constellation Centaurus
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Centaurus[1] |
| Right ascension | 14h 43m 39.44s[2] |
| Declination | −35° 10′ 25.2″[2] |
| Apparent magnitude (V) | +4.06[3] |
| Characteristics | |
| Evolutionary stage | red giant branch[4] |
| Spectral type | K3III[3] |
| U−B color index | +1.53 |
| B−V color index | +1.356[3] |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | −38 km/s |
| Proper motion (μ) | RA: −61.46±0.15[2] mas/yr Dec.: −176.84±0.14[2] mas/yr |
| Parallax (π) | 15.57 ± 0.16[2] mas |
| Distance | 209 ± 2 ly (64.2 ± 0.7 pc) |
| Absolute magnitude (MV) | −0.20[3] |
| Details | |
| Mass | 1.23[5] M☉ |
| Radius | 25[6] R☉ |
| Luminosity | 174[5] L☉ |
| Surface gravity (log g) | 1.86[7] cgs |
| Temperature | 4,240[5] K |
| Metallicity [Fe/H] | −0.20[5] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 129456, also known by its Bayer designation c1 Centauri (c1 Cen), is a star in the constellation Centaurus. c¹ Centauri is an orange K-type giant with an apparent magnitude of +4.06. It is approximately 209 light years from Earth.
References
- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific 99 (617): 695. doi:10.1086/132034. Bibcode: 1987PASP...99..695R Constellation record for this object at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 Van Leeuwen, Floor (2007). "Validation of the new Hipparcos reduction". Astronomy & Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. Vizier catalog entry
- ↑ 3.0 3.1 3.2 3.3 Jasniewicz, G. et al. (February 1999). "Late-type giants with infrared excess. I. Lithium abundances". Astronomy and Astrophysics 342: 831–838. Bibcode: 1999A&A...342..831J.
- ↑ Jura, M. (1999). "Dust around First-Ascent Red Giants". The Astrophysical Journal 515 (2): 706. doi:10.1086/307064. Bibcode: 1999ApJ...515..706J.
- ↑ 5.0 5.1 5.2 5.3 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.
- ↑ 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.
- ↑ Allende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures". Astronomy and Astrophysics 352: 555. Bibcode: 1999A&A...352..555A.
- ↑ "HD 129456". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+129456.
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