| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13 41 45.56335 |
| Declination | −33° 35′ 50.5658″ |
| Apparent magnitude (V) | 5.56 a- 8.44 |
| Spectral type | K0:e-M4II:e |
| Other designations | |
| T Cen, CD−32° 9549, HD 119090, HIP 66825, HR 5147, SAO 204739 | |
| Database references | |
| SIMBAD | data |
T Centauri is a variable star located in the far southern constellation Centaurus. It varies between magnitudes 5.56 and 8.44 over 181.4 days, making it intermittently visible to the naked eye. Pulsating between spectral classes K0:e and M4II:e, it has been classed as a semiregular variable, though Sebastian Otero of the American Association of Variable Star Observers has noted its curve more aligned with RV Tauri variable stars and has classified it as one.
The variability of the star was discovered in 1894 by Ernest Elliott Markwick, and independently by Williamina Fleming in 1895.
References
- ^ SIMBAD, T Centauri (accessed 22 July 2014)
- ^ Watson, Christopher (27 December 2012). "T Centauri". AAVSO Website. American Association of Variable Star Observers. Retrieved 22 July 2014.
- "ASAS All Star Catalogue". The All Sky Automated Survey. Retrieved 8 December 2021.
- Markwick, E. E. (July 1895). "Note on the variable star T Centauri, Cord. GC. 18609". Astronomische Nachrichten. 138 (13): 213. Bibcode:1895AN....138..213M. doi:10.1002/asna.18951381304. Retrieved 19 December 2024.
- "T Cen". The International Variable Star Index. AAVSO. Retrieved 19 December 2024.
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