Global InformationV354 Cephei information
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Cepheus |
| Right ascension | 22h 33m 34.636s[1] |
| Declination | +58° 53′ 47.12″[1] |
| Apparent magnitude (V) | 10.82 to 11.35[2] |
| Characteristics | |
| Spectral type | M2.5 Iab[3] – M3.5 Ib[4] |
| B−V color index | +3.18[5] |
| Variable type | Lc[2] |
| Astrometry | |
| Proper motion (μ) | RA: –3.151[1] mas/yr Dec.: –2.398[1] mas/yr |
| Parallax (π) | 0.2161 ± 0.0388 mas[1] |
| Distance | 13,100+2,030 −1,600 ly (4,019+623 −490 pc)[6] |
| Absolute magnitude (MV) | –7.57 (variable)[5] |
| Absolute bolometric magnitude (Mbol) | -8.51[7] |
| Details | |
| Radius | 1,139[7][a] R☉ |
| Luminosity | 76,000[8] – 199,500[7][b] L☉ |
| Surface gravity (log g) | –0.5[5] cgs |
| Temperature | 3,615[7] K |
| Other designations | |
V354 Cep, 2MASS J22333464+5853470, IRAS 22317+5838 | |
| Database references | |
| SIMBAD | data |
V354 Cephei is a red supergiant star located within the Milky Way. It is an irregular variable located over 13,000 light-years away from the Sun. It has an estimated radius of 1,139 solar radii (792,000,000 km; 5.30 au).[7] If it were placed in the center of the Solar System, it would extend to between the orbits of Mars and Jupiter.
- ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
- ^ a b "V354 Cep, database entry". The combined table of GCVS Vols I-III and NL 67-78 with improved coordinates, General Catalogue of Variable Stars. Moscow, Russia: Sternberg Astronomical Institute. Archived from the original on June 20, 2017. Retrieved November 12, 2010.
- ^ Verhoelst, T.; Van Der Zypen, N.; Hony, S.; Decin, L.; Cami, J.; Eriksson, K. (2009). "The dust condensation sequence in red supergiant stars". Astronomy and Astrophysics. 498 (1): 127–138. arXiv:0901.1262. Bibcode:2009A&A...498..127V. doi:10.1051/0004-6361/20079063. S2CID 18383796.
- ^ Dorda, R.; Negueruela, I.; González-Fernández, C. (2018). "The red supergiant population in the Perseus arm". Monthly Notices of the Royal Astronomical Society. 475 (2): 2003. arXiv:1712.08176. Bibcode:2018MNRAS.475.2003D. doi:10.1093/mnras/stx3317. S2CID 54605960.
- ^ a b c Levesque, Emily M.; Massey, Philip; Olsen, K. A. G.; Plez, Bertrand; Josselin, Eric; Maeder, Andre; Meynet, Georges (August 2005). "The Effective Temperature Scale of Galactic Red Supergiants: Cool, but Not As Cool As We Thought". The Astrophysical Journal. 628 (2): 973–985. arXiv:astro-ph/0504337. Bibcode:2005ApJ...628..973L. doi:10.1086/430901. S2CID 15109583.
- ^ Cite error: The named reference
b-jwas invoked but never defined (see the help page). - ^ a b c d e Verhoelst, T.; van der Zypen, N.; Hony, S.; Decin, L.; Cami, J.; Eriksson, K. (2009-04-01). "The dust condensation sequence in red supergiant stars". Astronomy and Astrophysics. 498: 127–138. arXiv:0901.1262. Bibcode:2009A&A...498..127V. doi:10.1051/0004-6361/20079063. ISSN 0004-6361.
- ^ Cite error: The named reference
mauronwas invoked but never defined (see the help page).
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