| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 06m 26.2297s |
| Declination | -13° 52′ 10.845″ |
| Apparent magnitude (V) | 4.281 |
| Characteristics | |
| Spectral type | B8V |
| U−B color index | -0.29 |
| B−V color index | -0.07 |
| Astrometry | |
| Radial velocity (Rv) | -10 km/s |
| Proper motion (μ) | RA: 40.45 mas/yr Dec.: -57.16 mas/yr |
| Parallax (π) | 18.9 ± 0.95 mas |
| Distance | 173 ± 9 ly (53 ± 3 pc) |
| Absolute magnitude (MV) | 3.219 |
| Details | |
| Mass | 18 M☉ |
| Radius | 7 R☉ |
| Luminosity | 20,000 L☉ |
| Temperature | 10,000–30,000 K |
| Rotation | 0.005749 Year |
| Other designations | |
| Database references | |
| SIMBAD | data |
Iota Aquarii (ι Aqr, ι Aquarii) is a star in the constellation Aquarius.
Iota Aquarii is a blue-white B-type subgiant with an apparent magnitude of +4.29. It is approximately 173 light years from Earth.
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