Astronomy:U Coronae Borealis
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Short description: Algol-type eclipsing binary star in the constellation Corona Borealis
| Observation data Epoch J2000.0 Equinox (celestial coordinates) | |
|---|---|
| Constellation | Corona Borealis |
| Right ascension | 15h 18m 11.35252s[1] |
| Declination | +31° 38′ 49.4159″[1] |
| Spectral type | B6 V + F8 III-IV[1] |
| Other designations | |
A visual band light curve for U Coronae Borealis, adapted from et al. (2003)[2]
U Coronae Borealis (U CrB) is an Algol-type eclipsing binary star system in the constellation Corona Borealis. Its apparent magnitude varies between 7.66 and 8.79 over a period of 3.45 days.[3] The component stars are a blue-white main sequence star of spectral type B6V and a cooler yellow-white subgiant star of spectral type F8III-IV.[4]
References
- ↑ 1.0 1.1 1.2 1.3 "V* U CrB". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=V%2A+U+CrB.
- ↑ Yerli, S. K.; Sarna, M. J.; Zola, S.; Smith, Robert Connon; Tovmassian, G. (July 2003). "A photometric-spectroscopic analysis and the evolutionary status of the Algol-type binary U Coronae Borealis". Monthly Notices of the Royal Astronomical Society 342 (4): 1349–1360. doi:10.1046/j.1365-8711.2003.06644.x. Bibcode: 2003MNRAS.342.1349Y.
- ↑ VSX (4 January 2010). "U Coronae Borealis". AAVSO Website. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=10603.
- ↑ Ibanoǧlu, C.; DervişoǧLu, A.; Ćakırlı, Ö.; Sipahi, E.; Yüce, K. (2012). "Carbon deficiencies in the primaries of some classical Algols". Monthly Notices of the Royal Astronomical Society 419 (2): 1472–79. doi:10.1111/j.1365-2966.2011.19812.x. Bibcode: 2012MNRAS.419.1472I.
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