| Identity |
| Name: | eta Aquarii |
| Hipparcos catalog ID: | 111497 |
| Other 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 |
| R.A. | 22h 35m 21.32893s (+/-0.00005s) |
| Decl. | -0° 7' 2.5004" (+/-0.0005") |
| Parallax: | 17.77 (+/-0.82) |
| Derived distance: | 184 light years |
| Proper motion in R.A.: | 88.56 (+/-0.92) mas/year |
| Proper motion in decl.: | -56.1 (+/-0.67) mas/year |
| Constellation: | Aquarius | |