Alpha Corvi
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| Observation data Epoch J2000 |
|
|---|---|
| Constellation | Corvus |
| Right ascension | 12h 08m 24.8s |
| Declination | -24° 43′ 44″ |
| Apparent magnitude (V) | 4.00 |
| Spectral Characteristics | |
| Spectral type | F0 IV-V |
| U-B color index | -0.02 |
| B-V color index | 0.33 |
| Variable type | ? |
| Astrometry | |
| Radial velocity (Rv) | +4.4 km/s |
| Proper motion (μ) | RA: 100.18 mas/yr Dec.: -39.33 mas/yr |
| Parallax (π) | 67.71 ± 0.75 mas |
| Distance | 48.2 ± 0.5 ly (14.8 ± 0.2 pc) |
| Absolute magnitude (MV) | 3.17 |
| Physical Characteristics | |
| Mass | 1.2 M☉ |
| Radius | ? R☉ |
| Luminosity | ? L☉ |
| Temperature | 7,000 K |
| Metallicity | ~25% |
| Rotation | 16 km/s |
| Age | ? years |
| Other designations | |
Alpha Corvi (α Crv / α Corvi) is a star in the constellation Corvus. It also has the traditional names Alchiba (Arabic "tent") or Al Minliar al Ghurab. It is known as 右轄 (the Right Linchpin) in Chinese.
Alchiba belongs to the spectral class F0 and has apparent magnitude +4.00. It is 48 light years from Earth. This star is suspected of being a spectroscopic binary, although this has not yet been confirmed.
[edit] References
- SIMBAD Query Result
- Alpha Corvi by Professor Jim Kaler.
- ARICNS
- nStars database entry
