Back Gliese 176 AST Gliese 176 German Gliese 176 Spanish گلیز ۱۷۶ Persian Gliese 176 French Gliese 176 Galician Gliese 176 Italian グリーゼ176 Japanese Gliese 176 Dutch Gliese 176 Portuguese
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Taurus |
| Right ascension | 04h 42m 55.7750s[1] |
| Declination | +18° 57′ 29.396″[1] |
| Apparent magnitude (V) | 9.95[2] |
| Characteristics | |
| Spectral type | M2V[3] |
| B−V color index | 1.523±0.025[4] |
| Variable type | None[5] |
| Astrometry | |
| Radial velocity (Rv) | 26.4105±0.0004[3] km/s |
| Proper motion (μ) | RA: +656.647[1] mas/yr Dec.: −1116.594[1] mas/yr |
| Parallax (π) | 105.4275 ± 0.0210 mas[1] |
| Distance | 30.937 ± 0.006 ly (9.485 ± 0.002 pc) |
| Absolute magnitude (MV) | 10.10±0.06[3] |
| Details | |
| Mass | 0.485±0.012[6] M☉ |
| Radius | 0.474±0.015[6] R☉ |
| Luminosity | 0.03516±0.00032[6] L☉ |
| Temperature | 3,632+58 −56[6] K |
| Metallicity [Fe/H] | −0.1±0.2[3] dex |
| Rotation | 40.00±0.11[3] days |
| Rotational velocity (v sin i) | ≤0.8[3] km/s |
| Age | 8.8+2.5 −2.8[5] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Gliese 176 is a small star with an orbiting exoplanet in the constellation of Taurus. With an apparent visual magnitude of 9.95,[2] it is too faint to be visible to the naked eye. It is located at a distance of 30.9 light years based on parallax measurements,[1] and is drifting further away with a heliocentric radial velocity of 26.4 km/s.[3]
This is an M-type main-sequence star, sometimes called a red dwarf, with a stellar classification of M2V.[3] It has 49% of the Sun's mass and 47% of the radius of the Sun. The star is radiating just 3.5% of the luminosity of the Sun from its photosphere at an effective temperature of 3,632 K. It is estimated to be around nine billion years old,[5] and is spinning slowly with a rotation period of 40 days. The star is orbited by a Super-Earth.
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