| Identity |
| Name: | Altair, alpha Aquilae |
| Hipparcos catalog ID: | 97649 |
| Other star catalog entries: | HD 187642
SAO 125122
BD B+08 4236
|
| |
| Appearance |
| Visual magnitude: | 0.76 (source: ground based) |
| Spectral type: | A7IV-V |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 19h 50m 46.68197s (+/-0.00002s) |
| Declination | 8° 52' 2.5850" (+/-0.0003") |
| Parallax: | 194.95 (+/-0.57) mas |
| Derived distance: | 16.7 light-years |
| Proper motion in R.A.: | 536.23 (+/-0.51) mas/year |
| Proper motion in declination: | 385.29 (+/-0.47) mas/year |
| Constellation: | Aquila | |