Upsilon1 Centauri
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- The correct title of this article is Upsilon1 Centauri. It features superscript or subscript characters that are substituted or omitted because of technical limitations.
- For other star systems with this Bayer designation, see Upsilon Centauri.
| Observation data Equinox J2000.0 |
|
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h58m40.8s |
| Declination | −44°48′13″ |
| Apparent magnitude (V) | +3.87 |
| Characteristics | |
| Spectral type | B2IV-V |
| U-B color index | −0.80 |
| B-V color index | −0.20 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | +5 km/s |
| Proper motion (μ) | RA: −27.97 mas/yr Dec.: −21.69 mas/yr |
| Parallax (π) | 7.81 ± 0.70 mas |
| Distance | 418 ly (128 pc) |
| Absolute magnitude (MV) | −1.66 |
| Other designations | |
| Database references | |
| SIMBAD | data |
Upsilon¹ Centauri (υ¹ Cen / υ¹ Centauri) is a star in the constellation Centaurus.
υ¹ Centauri is a blue-white B-type subgiant with an apparent magnitude of +3.87. It is approximately 418 light years from Earth.
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