| |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 21h34m 42.768123s[2] |
| Declination | +01° 49′ 44.95678″[2] |
| Apparent magnitude (V) | 6.41[3] (6.23 - 6.47)[4] |
| Characteristics | |
| Spectral type | M4 III[5] |
| B−V color index | 1.398±0.015[3] |
| Variable type | irregular variable |
| Astrometry | |
| Radial velocity (Rv) | −20.48±0.26[3] km/s |
| Proper motion (μ) | RA: +13.153[2] mas/yr Dec.: −8.518[2] mas/yr |
| Parallax (π) | 3.4739 ± 0.2458 mas[2] |
| Distance | 940 ± 70 ly (290 ± 20 pc) |
| Absolute magnitude (MV) | −0.75[3] |
| Details[3] | |
| Radius | 44.4 R☉ |
| Luminosity | 390.92 L☉ |
| Temperature | 3303 K |
| Other designations | |
IZ Aqr, AG+01° 2614, BD+01° 4503, FK5 5868, GC 30209, HD 205358, HIP 106544, SAO 126901, PPM 171943, TYC 542-105-1, GSC 00542-00105, IRAS 21321+0136, 2MASS J21344276+0149447[6] | |
| Database references | |
| SIMBAD | data |
IZ Aquarii is a red giant star in the constellation Aquarius. It is a slow irregular variable that varies between magnitudes 6.23 and 6.47.[4]
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