Phi Centauri
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 58m 16.27s[1] |
| Declination | −42° 06′ 02.7″[1] |
| Apparent magnitude (V) | +3.83 |
| Characteristics | |
| Spectral type | B2 IV[2] |
| U−B color index | −0.83 |
| B−V color index | −0.21 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | +6 km/s |
| Proper motion (μ) | RA: -22.77 ± 0.15[1] mas/yr Dec.: -20.13 ± 0.12[1] mas/yr |
| Parallax (π) | 6.21 ± 0.17[1] mas |
| Distance | 530 ± 10 ly (161 ± 4 pc) |
| Absolute magnitude (MV) | −1.93 |
| Details | |
| Mass | 8.5 ± 0.3[2] M☉ |
| Radius | 4.19 ± 0.35[3] R☉ |
| Luminosity | 4,000[4] L☉ |
| Surface gravity (log g) | 4.08 ± 0.07[3] cgs |
| Temperature | 21,638 ± 388[3] K |
| Age | 18.0 ± 3.2[2] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Phi Centauri (φ Cen, φ Centauri) is a star in the constellation Centaurus. φ Centauri is a blue-white B-type subgiant with an apparent magnitude of +3.83. It is approximately 530 light years from Earth.
This star is a proper motion member of the Upper-Centaurus Lupus sub-group in the Scorpius-Centaurus OB association, the nearest such co-moving association of massive stars to the Sun.[4]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found. Vizier catalog entry
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
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