74 Geminorum
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Gemini |
| Right ascension | 07h 39m 28.593s |
| Declination | +17° 40′ 28.28″ |
| Apparent magnitude (V) | 5.05 |
| Characteristics | |
| Evolutionary stage | K-type giant |
| Spectral type | K5.5III |
| Apparent magnitude (U) | 8.53 |
| Apparent magnitude (B) | 6.61 |
| Apparent magnitude (G) | 4.348±0.003 |
| Apparent magnitude (J) | 2.11 |
| Apparent magnitude (H) | 1.32 |
| Apparent magnitude (K) | 1.14 |
| B−V color index | 1.616±0.007 |
| Astrometry | |
| Radial velocity (Rv) | 25.38±0.19 km/s |
| Proper motion (μ) | RA: 5.374 mas/yr Dec.: -1.199 mas/yr |
| Parallax (π) | 5.1083±0.0964 mas |
| Distance | 640 ± 10 ly (196 ± 4 pc) |
| Absolute magnitude (MV) | -1.01 |
| Details | |
| Radius | 89.6 R☉ |
| Luminosity | 666 L☉ |
| Temperature | 3,933 K |
| Other designations | |
| f Gem, 74 Gem, BD+18 1701, Gaia DR2 671137503843195392, Gaia DR3 671137503843195392, HD 61338, HIP 37300, HR 2938, SAO 97120, PPM 124288, WDS J07395+1740AB, TIC 16134382, TYC 1365-2474-1, GSC 01365-02474, IRAS 07366+1747, 2MASS J07392860+1740282 | |
| Database references | |
| SIMBAD | data |
74 Geminorum (f Geminorum) is a K-type giant star in the constellation Gemini. It is located about 640 light-years from Earth based on its Gaia DR3 parallax. The star is often subject to lunar occultations, allowing an accurate measurement of its angular diameter. It has an apparent magnitude of 5.05, making it faintly visible to the naked eye.