RS Coronae Borealis explained

RS Coronae Borealis is a semiregular variable star located in the constellation Corona Borealis with a parallax of 2.93mas being a distance of 341pc.[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).[3] 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.[4]

Notes and References

  1. SIMBAD, RS Coronae Borealis (accessed 20 February 2013)
  2. Web site: RS Coronae Borealis. Watson, Christopher . 4 January 2010 . The International Variable Star Index. American Association of Variable Star Observers. 25 July 2015.
  3. 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. 10.1051/0004-6361/201118375 . 2012A&A...539A..86J. 1201.5315 . 53404166 .
  4. 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. 2012MNRAS.427..343M. 1208.2037 . 10.1111/j.1365-2966.2012.21873.x . 118665352.

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