RS Telescopii
RS Telescopii is a star in the constellation Telescopium.
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Telescopium |
| Right ascension | 18h 18m 51.22076s [1] |
| Declination | −46° 32′ 53.4122″ [1] |
| Spectral type | C (R4)[2] |
It is a rare R Coronae Borealis variable—an extremely hydrogen-deficient supergiant thought to have arisen as the result of the merger of two white dwarfs; fewer than 100 have been discovered as of 2012.[3]
It has a maximum magnitude of 9.6 and a minimum magnitude 16.5.[2] As of 2012, four dimmings have been observed.[3]
It has under 55% the mass of the Sun and an effective (surface) temperature of around 6750 K.[4]
References
- "V* RS Telescopii -- Variable Star of R CrB type". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 3 July 2014.
- BSJ (11 November 2011). "RX Telescopii". AAVSO Website. American Association of Variable Star Observers. Retrieved 26 June 2014.
- Tisserand; Clayton; Welch; Pilecki; Wyrzykowski; Kilkenny (2012). "The Ongoing Pursuit of R Coronae Borealis Stars: ASAS-3 Survey Strikes Again". Astronomy & Astrophysics. 551: 22. arXiv:1211.2475. Bibcode:2013A&A...551A..77T. doi:10.1051/0004-6361/201220713. A77.
- Stasińska, G.; Szczerba, R.; Schmidt, M.; Siódmiak, N. (2006). "Post-AGB stars as testbeds of nucleosynthesis in AGB stars". Astronomy and Astrophysics. 450 (2): 701. arXiv:astro-ph/0601504. Bibcode:2006A&A...450..701S. doi:10.1051/0004-6361:20053553.
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