| Identity |
| Name: | Aldebaran, alpha Tauri |
| Hipparcos catalog ID: | 21421 |
| Other star catalog entries: | HD 29139
SAO 94027
BD B+16 629
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| Appearance |
| Visual magnitude: | 0.87 (source: ground based) |
| Spectral type: | K5III |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 4h 35m 55.20047s (+/-0.00004s) |
| Declination | 16° 30' 35.1417" (+/-0.0004") |
| Parallax: | 48.94 (+/-0.77) mas |
| Derived distance: | 66.6 light-years |
| Proper motion in R.A.: | 63.45 (+/-0.84) mas/year |
| Proper motion in declination: | -188.94 (+/-0.65) mas/year |
| Constellation: | Taurus | |