Omicron Geminorum
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Gemini |
| Right ascension | 07h 39m 09.93466s |
| Declination | +34° 35′ 03.5028″ |
| Apparent magnitude (V) | 4.90 |
| Characteristics | |
| Evolutionary stage | Subgiant |
| Spectral type | F5-6 IV |
| U−B color index | +0.09 |
| B−V color index | +0.41 |
| Astrometry | |
| Radial velocity (Rv) | +7.3 km/s |
| Proper motion (μ) | RA: −37.975 mas/yr Dec.: −105.132 mas/yr |
| Parallax (π) | 19.3338±0.1263 mas |
| Distance | 169 ± 1 ly (51.7 ± 0.3 pc) |
| Absolute magnitude (MV) | 1.35 |
| Details | |
| Mass | 2.0 M☉ |
| Radius | 4.0 R☉ |
| Luminosity | 24 L☉ |
| Surface gravity (log g) | 3.48 cgs |
| Temperature | 6,470 K |
| Metallicity [Fe/H] | +0.12 dex |
| Rotational velocity (v sin i) | 91.1 km/s |
| Age | 1.2 Gyr |
| Other designations | |
| Jishui, ο Gem, 71 Geminorum, BD+34°1649, FK5 2592, HD 61110, HIP 37265, HR 2930, SAO 60247 | |
| Database references | |
| SIMBAD | data |
Omicron Geminorum (ο Geminorum, abbreviated Omicron Gem, ο Gem), also named Jishui, is a solitary star in the constellation of Gemini. It is faintly visible to the naked eye with an apparent visual magnitude of 4.90. Based upon an annual parallax shift of 19.3 mas, it is located at a distance of 169 light-years from the Sun.