R Corvi
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Corvus |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 6.70[2] |
| Characteristics | |
| Spectral type | M4.5-9:e[2] |
| B−V Template:Engvar | 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 |
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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]
Franciszek Karliński discovered that the star's brightness varies, in 1867.[6]
References
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