| Identity |
| Name: | Alnilam, epsilon Orionis |
| Hipparcos catalog ID: | 26311 |
| Other star catalog entries: | HD 37128
SAO 132346
BD B-01 969
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| |
| Appearance |
| Visual magnitude: | 1.69 (source: ground based) |
| Spectral type: | B0Ia |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 5h 36m 12.81250s (+/-0.00002s) |
| Declination | -1° 12' 6.9021" (+/-0.0002") |
| Parallax: | 1.65 (+/-0.45) mas |
| Derived distance: | 1977 light-years |
| Proper motion in R.A.: | 1.44 (+/-0.42) mas/year |
| Proper motion in declination: | -0.78 (+/-0.19) mas/year |
| Constellation: | Orion | |