Back RT Carinae AST RT Carinae Spanish RT בשדרית HE RT Carinae Italian りゅうこつ座RT星 Japanese RT Киля Russian RT Carinae Swedish 船底座RT Chinese
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Carina |
| Right ascension | 10h 44m 47.148s[1] |
| Declination | −59° 24′ 48.1228″[1] |
| Apparent magnitude (V) | 8.36[2] (8.2 - 9.9[3]) |
| Characteristics | |
| Spectral type | M2+ Iab[4] |
| B−V color index | +2.31[2] |
| Variable type | LC[3] |
| Astrometry | |
| Radial velocity (Rv) | −21.95±0.58[1] km/s |
| Proper motion (μ) | RA: −7.432 mas/yr[1] Dec.: 2.851 mas/yr[1] |
| Parallax (π) | 0.470±0.069 mas[5] |
| Distance | approx. 7,000 ly (approx. 2,100 pc) |
| Absolute magnitude (MV) | −6.74[2] |
| Details[2] | |
| Radius | 1,090 R☉ |
| Luminosity (bolometric) | 129,000+33,000 −24,000[6] L☉ |
| Surface gravity (log g) | −0.3 cgs |
| Temperature | 3,625 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
RT Carinae, also known as CD-58 3538, is a red supergiant and a variable star, located 7,000 light years away in the constellation Carina. It is in the Carina Nebula. The average apparent magnitude of +8.55, too faint to be visible to the naked eye.
- ^ a b c d Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c d Levesque, Emily M.; Massey, Philip; Olsen, K. A. G.; Plez, Bertrand; Josselin, Eric; Maeder, Andre; Meynet, Georges (2005). "The Effective Temperature Scale of Galactic Red Supergiants: Cool, but Not As Cool As We Thought". The Astrophysical Journal. 628 (2): 973. arXiv:astro-ph/0504337. Bibcode:2005ApJ...628..973L. doi:10.1086/430901.
- ^ a b Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
- ^ Keenan, P.; McNeil, R. (October 1989). "The Perkins catalog of revised MK types for the cooler stars". Astrophysical Journal Supplement Series. 71: 245–266. Bibcode:1989ApJS...71..245K. doi:10.1086/191373. S2CID 123149047.
- ^ Cite error: The named reference
Berlanaswas invoked but never defined (see the help page). - ^ Davies, Ben; Beasor, Emma R. (March 2020). "The 'red supergiant problem': the upper luminosity boundary of Type II supernova progenitors". MNRAS. 493 (1): 468–476. arXiv:2001.06020. Bibcode:2020MNRAS.493..468D. doi:10.1093/mnras/staa174. S2CID 210714093.