Astronomy:TT Corvi
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Short description: Variable star in the constellation Corvus
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Corvus |
| Right ascension | 12h 23m 18.867s[1] |
| Declination | −11° 48′ 43.63″[1] |
| Apparent magnitude (V) | 6.47 to 6.57[2] |
| Characteristics | |
| Spectral type | M3III[2] |
| Variable type | semiregular[2] |
| Astrometry | |
| Radial velocity (Rv) | −0.17±0.15[1] km/s |
| Proper motion (μ) | RA: −51.390[1] mas/yr Dec.: −10.877[1] mas/yr |
| Parallax (π) | 3.2721 ± 0.0484[1] mas |
| Distance | 1,000 ± 10 ly (306 ± 5 pc) |
| Database references | |
| SIMBAD | data |
TT Corvi (TT Crv) is a semiregular variable star in the constellation Corvus. It is a red giant of spectral type M3III and average apparent magnitude 6.48 around 923 light years distant.[4] It shines with a luminosity approximately 993 times that of the Sun and has a surface temperature of 3,630 K.[5]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 Samus', N. N.; Kazarovets, E. V.; Durlevich, O. V.; Kireeva, N. N.; Pastukhova, E. N. (2017). "General catalogue of variable stars: Version GCVS 5.1". Astronomy Reports 61 (1): 80. doi:10.1134/S1063772917010085. Bibcode: 2017ARep...61...80S.
- ↑ "ASAS All Star Catalogue". The All Sky Automated Survey. http://www.astrouw.edu.pl/asas/?page=aasc.
- ↑ Tabur, V.; Bedding, T. R. (2009). "Long-term photometry and periods for 261 nearby pulsating M giants". Monthly Notices of the Royal Astronomical Society 400 (4): 1945–61. doi:10.1111/j.1365-2966.2009.15588.x. Bibcode: 2009MNRAS.400.1945T.
- ↑ 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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