Alpha Crateris
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|
Alpha Crateris |
|
| Observation data Epoch J2000 |
|
|---|---|
| Constellation (pronunciation) |
Crater |
| Right ascension | 10h 59m 46.4647s |
| Declination | -18° 17' 55.62"' |
| Apparent magnitude (V) | 4.07 |
| Characteristics | |
| Spectral type | K1III |
| U-B color index | ? |
| B-V color index | ? |
| Variable type | None |
| Astrometry | |
| Radial velocity (Rv) | 46.8 km/s |
| Proper motion (μ) | RA: -462.38 mas/yr Dec.: 129.11 mas/yr |
| Parallax (π) | 18.71 ± 1.03 mas |
| Distance | 174 ± 10 ly (53 ± 3 pc) |
| Absolute magnitude (MV) | 5.17 |
| Details | |
| Mass | 2.5 M☉ |
| Radius | 6.5 R☉ |
| Luminosity | 80 L☉ |
| Temperature | ? K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Other designations | |
| Database references | |
| SIMBAD | data |
Alpha Crateris (α Crt / α Crateris) is a star in the constellation Crater. It also has the traditional name Alkes (Arabic "cups").
Alpha Crateris belongs to the spectral class K1 and has apparent magnitude 4.07, and is 174 light years from Earth.
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