BD−10°3166
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Crater |
| Right ascension | 10h 58m 28.7841s |
| Declination | −10° 46′ 13.395″ |
| Apparent magnitude (V) | 10.02 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | K3.0V |
| B−V color index | 0.85 |
| Astrometry | |
| Radial velocity (Rv) | 26.4±2 km/s |
| Proper motion (μ) | RA: −185.695±0.019 mas/yr Dec.: −8.175±0.016 mas/yr |
| Parallax (π) | 11.948±0.0178 mas |
| Distance | 273.0 ± 0.4 ly (83.7 ± 0.1 pc) |
| Absolute magnitude (MV) | +5.4 |
| Details | |
| Mass | 0.94 M☉ |
| Radius | 0.9 R☉ |
| Luminosity | 0.56 L☉ |
| Surface gravity (log g) | 4.5 cgs |
| Temperature | 5257 K |
| Metallicity [Fe/H] | 0.30 dex |
| Rotational velocity (v sin i) | 5.4 km/s |
| Age | 5.2±3.4 Gyr |
| Other designations | |
| GSC 05503-00946 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
BD−10°3166 is a K-type main sequence star approximately 268 light-years away in the constellation of Crater. It was inconspicuous enough not be included in the Draper catalog (HD). The Hipparcos satellite also did not study it, so its true distance was poorly known. The distance measured by the Gaia spacecraft of 273 light years rules out a suggested companion star, LP 731-076, being its true binary star companion.