Astronomy:R Corvi
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| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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 | |
BD-18° 3367, HD 107199, HIP 60106, SAO 157211. | |
| 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. https://www.aavso.org/data-download.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 "R Crv". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=R+Crv.
- ↑ 3.0 3.1 VSX (4 January 2010). "R Corvi". AAVSO Website. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=10671. 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, https://books.google.com/books?id=40JzBYGREL0C&pg=PA108
- ↑ 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. doi:10.1111/j.1365-2966.2008.13032.x. Bibcode: 2008MNRAS.386..313W.
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