Gliese 877
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Octans |
| Right ascension | 22h 55m 45.513s |
| Declination | −75° 27′ 31.20″ |
| Apparent magnitude (V) | 10.377 |
| Characteristics | |
| Spectral type | M3V |
| Astrometry | |
| Radial velocity (Rv) | +65.52±0.13 km/s |
| Proper motion (μ) | RA: −1,026.203 mas/yr Dec.: −1,059.407 mas/yr |
| Parallax (π) | 116.3134±0.0168 mas |
| Distance | 28.041 ± 0.004 ly (8.597 ± 0.001 pc) |
| Absolute magnitude (MV) | 10.700 ± 0.0240 |
| Details | |
| Radius | 0.442 ± 0.040 R☉ |
| Temperature | 3467 ± 100 K |
| Rotational velocity (v sin i) | 0.95 km/s |
| Other designations | |
| GJ 877, HIP 113229, L 49-19, LHS 531 | |
| Database references | |
| SIMBAD | data |
Gliese 877 (GJ 877 / HIP 113229 / LHS 531) is a red dwarf star located in the southern constellation of Octans, near the boundary with Indus. At a distance of 28.04 light-years (8.60 parsecs), it is the nearest star in Octans. Known stars close to it are β Hydri and ζ Tucanae, respectively 4.5 and 6.2 light years.
Gliese 877's bolometric luminosity is just 2.3% of the Sun's. It shines with an apparent magnitude of +10.22, so it cannot be seen with the naked eye. Nevertheless, it is considerably brighter than other red dwarfs, such as Proxima Centauri, the closest red dwarf to the Solar System; in particular, it is almost 14 times more luminous than Proxima. Of spectral type M3V, its effective temperature is 3390 K. It does not appear to be a variable star.