Gliese 12
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pisces |
| Right ascension | 00h 15m 49.24231s |
| Declination | +13° 33′ 22.3163″ |
| Apparent magnitude (V) | 12.6 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | M4V |
| Apparent magnitude (V) | 12.600±0.04 |
| Apparent magnitude (R) | 12.296±0.08 |
| Apparent magnitude (G) | 11.399±0.003 |
| Apparent magnitude (J) | 8.619±0.020 |
| Apparent magnitude (H) | 8.068±0.026 |
| Apparent magnitude (K) | 7.807±0.020 |
| Astrometry | |
| Radial velocity (Rv) | 51.04±0.26 km/s |
| Proper motion (μ) | RA: 618.065 mas/yr Dec.: 329.446 mas/yr |
| Parallax (π) | 82.1938±0.0326 mas |
| Distance | 39.68 ± 0.02 ly (12.166 ± 0.005 pc) |
| Details | |
| Mass | 0.2414±0.0060 M☉ |
| Radius | 0.2617+0.0058 −0.0070 R☉ |
| Luminosity (bolometric) | 0.00728±0.00015 L☉ |
| Surface gravity (log g) | 5.21±0.07 cgs |
| Temperature | 3,296+48 −36 K |
| Metallicity [Fe/H] | −0.32±0.06 dex |
| Rotation | 85 days |
| Rotational velocity (v sin i) | <2 km/s |
| Age | 7.0+2.8 −2.2 Gyr |
| Other designations | |
| GJ 12, G 32-5, L 1154-29, LHS 1050, LP 464-42, LTT 10083, NLTT 786, PLX 42, TOI-6251, TIC 52005579, 2MASS J00154919+1333218 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
Gliese 12 (GJ 12) is a red dwarf star located 39.7 light-years (12.2 parsecs) away in the constellation Pisces. It has about 24% the mass and 26% the radius of the Sun, and a temperature of about 3,296 K (3,023 °C; 5,473 °F). It is an inactive star and hosts one known exoplanet.