| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Corvus |
| Right ascension | 12h 19m 37.8727s [2] |
| Declination | −19° 15′ 21.877″ [2] |
| Apparent magnitude (V) | 6.70 [2] |
| Characteristics | |
| Spectral type | M4.5-9:e [2] |
| B−V color index | 3.70 [2] |
| Variable type | Mira [3] |
| Astrometry | |
| Radial velocity (Rv) | -22.00 [2] km/s |
| Proper motion (μ) |
RA: -1.20
[2]
mas/
yr Dec.: -10.03 [2] mas/ yr |
| Distance | 810 pc |
| Other designations | |
| Database references | |
| SIMBAD | data |
R Corvi (R Crv) is a Mira variable star in the constellation Corvus, which ranges from a magnitude of 6.7 to 14.4 with a period of approximately 317 days. [3] In the sky it appears close to Gamma Corvi and can be seen in the same binocular field. [4] Extrapolating its luminosity from its period of 317 days yields a distance of 810 parsecs. [5]
References
- ^ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
- ^ a b c d e f g h "R Crv". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 24 June 2014.
- ^ a b VSX (4 January 2010). "R Corvi". AAVSO Website. American Association of Variable Star Observers. Retrieved 24 May 2014.
- ^ Garfinkle, Robert A. (1997), Star-Hopping: Your Visa to Viewing the Universe, Cambridge University Press, p. 108, ISBN 0-521-59889-3
- ^ Whitelock, Patricia A.; Feast, Michael W.; van Leeuwen, Floor (2008). "AGB variables and the Mira period-luminosity relation". Monthly Notices of the Royal Astronomical Society. 386 (1): 313–23. arXiv: 0801.4465. Bibcode: 2008MNRAS.386..313W. doi: 10.1111/j.1365-2966.2008.13032.x. S2CID 17676993.
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