R Corvi

R Crv

The visual band light curve of R Corvi, from AAVSO data[1]
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
Distance810 pc
Other designations
BD-18° 3367, HD 107199, HIP 60106, SAO 157211.
Database references
SIMBADdata

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

  1. ^ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
  2. ^ a b c d e f g h "R Crv". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 24 June 2014.
  3. ^ a b VSX (4 January 2010). "R Corvi". AAVSO Website. American Association of Variable Star Observers. Retrieved 24 May 2014.
  4. ^ Garfinkle, Robert A. (1997), Star-Hopping: Your Visa to Viewing the Universe, Cambridge University Press, p. 108, ISBN 0-521-59889-3
  5. ^ 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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