Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Pisces[1] |
Right ascension | 00h 15m 49.24231s[2] |
Declination | +13° 33′ 22.3163″[2] |
Apparent magnitude (V) | 12.6[3] |
Characteristics | |
Evolutionary stage | main sequence |
Spectral type | M4V[4] |
Apparent magnitude (V) | 12.600±0.04[3] |
Apparent magnitude (R) | 12.296±0.08[3] |
Apparent magnitude (G) | 11.399±0.003[2] |
Apparent magnitude (J) | 8.619±0.020[3] |
Apparent magnitude (H) | 8.068±0.026[3] |
Apparent magnitude (K) | 7.807±0.020[3] |
Astrometry | |
Radial velocity (Rv) | 51.04±0.26[2] km/s |
Proper motion (μ) | RA: 618.065 mas/yr[2] Dec.: 329.446 mas/yr[2] |
Parallax (π) | 82.1938 ± 0.0326 mas[2] |
Distance | 39.68 ± 0.02 ly (12.166 ± 0.005 pc) |
Details[5] | |
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[6] Gyr |
Other designations | |
Database references | |
SIMBAD | 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.[5]
GaiaDR3
was invoked but never defined (see the help page).SIMBAD
was invoked but never defined (see the help page).Newton2014
was invoked but never defined (see the help page).Kuzuhara2024
was invoked but never defined (see the help page).Dholakia2024
was invoked but never defined (see the help page).