Gliese 682
Gliese 682 or GJ 682 is a red dwarf. It is listed as the 53rd-nearest known star system to the Sun, being 16.3 light years away from the Earth. Even though it is close by, it is dim with a magnitude of 10.95 and thus requires a telescope to be seen. It is located in the constellation of Scorpius, near the bright star Theta Scorpii. The star is in a crowded region of sky near the Galactic Center, and so appears to be near a number of deep-sky objects from the Solar System's perspective. The star is only 0.5 degrees from the much more distant globular cluster NGC 6388.
Gliese 682 Location of Gliese 682 in the constellation Scorpius | |
| Observation data Epoch J2000 Equinox | |
|---|---|
| Constellation | Scorpius |
| Right ascension | 17h 37m 03.6655s |
| Declination | −44° 19′ 09.166″ |
| Apparent magnitude (V) | 10.94 |
| Characteristics | |
| Spectral type | M3.5V |
| Apparent magnitude (B) | ~12.61 |
| Apparent magnitude (V) | ~10.96 |
| Apparent magnitude (J) | 6.544 ±0.023 |
| Apparent magnitude (H) | 5.917 ±0.038 |
| Apparent magnitude (K) | 5.606 ±0.020 |
| Astrometry | |
| Radial velocity (Rv) | −34.90±0.30 km/s |
| Proper motion (μ) | RA: −705.945±0.035 mas/yr Dec.: −938.080±0.021 mas/yr |
| Parallax (π) | 199.6944 ± 0.0312 mas |
| Distance | 16.333 ± 0.003 ly (5.0077 ± 0.0008 pc) |
| Absolute magnitude (MV) | 12.4 |
| Details | |
| Mass | 0.27 M☉ |
| Radius | 0.30 R☉ |
| Luminosity | 0.008118 L☉ |
| Surface gravity (log g) | 4.95 cgs |
| Temperature | 3,237 K |
| Metallicity [Fe/H] | 0.05±0.09 dex |
| Rotational velocity (v sin i) | 3.42 km/s |
| Age | 6.4±4.3 Gyr |
| Other designations | |
CD−44 11909, GJ 682, LHS 451, LFT 1358, HIP 86214, PLX 3992. | |
| Database references | |
| SIMBAD | star |
| planet b | |
| planet c | |
| Exoplanet Archive | data |
| ARICNS | data |
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