| Identity |
| Name: | eta Aquarii |
| Hipparcos catalog ID: | 111497 |
| Other star catalog entries: | HD 213998
SAO 146181
BD B-00 4384
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| Appearance |
| Visual magnitude: | 4.04 (source: Hipparcos) |
| Spectral type: | B9IV-Vn |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 22h 35m 21.32891s (+/-0.00001s) |
| Declination | -0° 7' 2.5005" (+/-0.0001") |
| Parallax: | 19.43 (+/-0.25) mas |
| Derived distance: | 168 light-years |
| Proper motion in R.A.: | 89.74 (+/-0.25) mas/year |
| Proper motion in declination: | -55.81 (+/-0.18) mas/year |
| Constellation: | Aquarius | |