| Identity |
| Name: | Alhena, gamma Geminorum |
| Hipparcos catalog ID: | 31681 |
| Other star catalog entries: | HD 47105
SAO 95912
BD B+16 1223
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| Appearance |
| Visual magnitude: | 1.93 (source: ground based) |
| Spectral type: | A0IV |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 6h 37m 42.70211s (+/-0.00015s) |
| Declination | 16° 23' 57.8904" (+/-0.0015") |
| Parallax: | 29.84 (+/-2.23) mas |
| Derived distance: | 109 light-years |
| Proper motion in R.A.: | 13.81 (+/-2.36) mas/year |
| Proper motion in declination: | -54.96 (+/-1.77) mas/year |
| Constellation: | Gemini | |