Iota Geminorum
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Gemini |
| Right ascension | 07h 25m 43.59532s |
| Declination | +27° 47′ 53.0929″ |
| Apparent magnitude (V) | 3.791 |
| Characteristics | |
| Evolutionary stage | red clump |
| Spectral type | G9 III |
| U−B color index | +0.88 |
| B−V color index | +1.01 |
| Astrometry | |
| Radial velocity (Rv) | 7.26±0.16 km/s |
| Proper motion (μ) | RA: −122.66 mas/yr Dec.: −84.03 mas/yr |
| Parallax (π) | 27.10±0.20 mas |
| Distance | 120.4 ± 0.9 ly (36.9 ± 0.3 pc) |
| Absolute magnitude (MV) | +0.859 |
| Details | |
| Mass | 1.89 M☉ |
| Radius | 9.48±0.12 R☉ |
| Luminosity | 53.7±2.8 L☉ |
| Surface gravity (log g) | 2.8 cgs |
| Temperature | 5,072±68 K |
| Metallicity [Fe/H] | −0.17 dex |
| Rotational velocity (v sin i) | 0.0 km/s |
| Age | 4.16±2.54 Gyr |
| Other designations | |
| ι Gem, 60 Geminorum, BD+28°1385, FK5 282, HD 58207, HIP 36046, HR 2821, SAO 79374. | |
| Database references | |
| SIMBAD | data |
Iota Geminorum (ι Geminorum, ι Gem) is a solitary fourth-magnitude star in the constellation Gemini. In the sky, it forms an isosceles triangle with Castor and Pollux, and is located less than a degree from the 5th magnitude stars 64 and 65 Geminorum.