Astronomy:RS Coronae Borealis
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Short description: Semiregular variable star in the constellation Corona Borealis
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Corona Borealis |
| Right ascension | 15h 58m 30.764s[1] |
| Declination | +36° 01′ 19.73″[1] |
| Apparent magnitude (V) | 8.7-11.6[2] |
| Spectral type | M7III |
| Other designations | |
RS CrB, HD 143347, HIP 78235, SAO 64995, BD+36° 2672 | |
RS Coronae Borealis is a semiregular variable star located in the constellation Corona Borealis with a parallax of 2.93mas being a distance of 341 parsecs (1,110 ly).[1] It varies between magnitudes 8.7 to 11.6 over 332 days.[2] It is unusual in that it is a red star with a high proper motion (greater than 50 milliarcseconds a year).[4] Located around 1072 light-years distant, it shines with a luminosity approximately 1839 times that of the Sun and has a surface temperature of 3340 K.[5]
References
- ↑ 1.0 1.1 1.2 1.3 SIMBAD, RS Coronae Borealis (accessed 20 February 2013)
- ↑ 2.0 2.1 Watson, Christopher (4 January 2010). "RS Coronae Borealis". The International Variable Star Index. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=10610. Retrieved 25 July 2015.
- ↑ "Hipparcos Tools Interactive Data Access". ESA. https://www.cosmos.esa.int/web/hipparcos/interactive-data-access.
- ↑ Jiménez-Esteban, F. M.; Caballero, J. A.; Dorda, R.; Miles-Páez, P. A.; Solano, E. (2012). "Identification of red high proper-motion objects in Tycho-2 and 2MASS catalogues using Virtual Observatory tools". Astronomy & Astrophysics 539: 12. doi:10.1051/0004-6361/201118375. Bibcode: 2012A&A...539A..86J.
- ↑ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society 427 (1): 343–57. doi:10.1111/j.1365-2966.2012.21873.x. Bibcode: 2012MNRAS.427..343M.
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