BG Crucis
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Crux |
| Right ascension | 12h 31m 40.33017s[1] |
| Declination | −59° 25′ 26.1204″[1] |
| Apparent magnitude (V) | 5.34 - 5.58[2] |
| Spectral type | F5Ib-G0p[2] |
| Other designations | |
| Database references | |
| SIMBAD | data |
BG Crucis is a star in the constellation Crux. A Cepheid variable, its apparent magnitude ranges from 5.34 to 5.58 over 3.3428 days.[2] A yellow-white supergiant that pulsates between spectral types F5Ib and G0p, it is around 4.3 times as massive and 2,000 times as luminous as the Sun.[3]
References
- 1 2 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
- 1 2 3 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.
- ↑ Usenko, I. A.; Kniazev, A. Yu.; Berdnikov, L. N.; Fokin, A. B.; Kravtsov, V. V. (2014). "Spectroscopic studies of southern-hemisphere Cepheids: Three Cepheids in Crux (BG Cru, R Cru, and T Cru)". Astronomy Letters. 40 (7): 435. Bibcode:2014AstL...40..435U. doi:10.1134/S106377371407007X.
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