Acubens
Acubens /ˈækjuːbɛnz/, Bayer designation Alpha Cancri (α Cancri, abbreviated Alpha Cnc, α Cnc), is a star system in the constellation of Cancer.
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Cancer |
| Right ascension | 08h 58m 29.2042s |
| Declination | +11° 51′ 27.649″ |
| Apparent magnitude (V) | 4.20 to 4.27 |
| Characteristics | |
| Spectral type | kA7VmF0/2III/IVSr |
| U−B color index | +0.15 |
| B−V color index | +0.14 |
| R−I color index | +0.04 |
| Astrometry | |
| Radial velocity (Rv) | −12.1±0.8 km/s |
| Proper motion (μ) | RA: 42.181 mas/yr Dec.: −31.160 mas/yr |
| Parallax (π) | 18.3304 ± 0.3216 mas |
| Distance | 178 ± 3 ly (54.6 ± 1.0 pc) |
| Absolute magnitude (MV) | 0.46 |
| Details | |
| Aa + Ab | |
| Mass | 2.10 M☉ |
| Luminosity | 50.55 L☉ |
| Temperature | 7,943 K |
| Metallicity | 3.73 |
| Rotational velocity (v sin i) | 75 km/s |
| B | |
| Mass | 0.38 M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
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