Gliese 674
Location of Gliese 674 in the constellation Ara | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 17h 28m 39.94558s |
| Declination | –46° 53′ 42.6881″ |
| Apparent magnitude (V) | 9.38 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | M3V |
| U−B color index | 1.20 |
| B−V color index | 1.553±0.017 |
| R−I color index | 1.33 |
| Astrometry | |
| Radial velocity (Rv) | −2.904±0.0004 km/s |
| Proper motion (μ) | RA: 572.568(40) mas/yr Dec.: −880.583(27) mas/yr |
| Parallax (π) | 219.6463±0.0262 mas |
| Distance | 14.849 ± 0.002 ly (4.5528 ± 0.0005 pc) |
| Absolute magnitude (MV) | 11.09 |
| Details | |
| Mass | 0.353±0.008 M☉ |
| Radius | 0.361+0.012 −0.011 R☉ |
| Luminosity | 0.01575±0.00037 L☉ |
| Temperature | 3,404+59 −57 K |
| Metallicity [Fe/H] | −0.30±0.08 dex |
| Rotation | 32.9±0.1 d |
| Rotational velocity (v sin i) | 3.2±1.2 km/s |
| Age | 0.1–1.0 Gyr |
| Other designations | |
| CD−46°11540, GJ 674, HIP 85523, LFT 1351, LHS 449, LPM 645, LTT 6942 | |
| Database references | |
| SIMBAD | The star |
| b | |
| Exoplanet Archive | data |
| ARICNS | data |
Gliese 674 (GJ 674) is a red dwarf star with an exoplanetary companion in the southern constellation of Ara. It is too faint to be visible to the naked eye, having an apparent visual magnitude of 9.38 and an absolute magnitude of 11.09. The system is located at a distance of 14.85 light-years from the Sun based on parallax measurements, but is drifting closer with a radial velocity of −2.9 km/s. It is a candidate member of the 200 million year old Castor stream of co-moving stars.