| |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 21h16m 17.7734s[2] |
| Declination | −09° 12′ 52.795″[2] |
| Apparent magnitude (V) | 6.44 - 6.55[3] |
| Characteristics | |
| Spectral type | M4III:[4] |
| B−V color index | 1.57[5] |
| Variable type | Semiregular[4] |
| Astrometry | |
| Radial velocity (Rv) | 8.00[6] km/s |
| Proper motion (μ) | RA: −1.597[2] mas/yr Dec.: +3.549[2] mas/yr |
| Parallax (π) | 2.4622 ± 0.0685 mas[2] |
| Distance | 1,320 ± 40 ly (410 ± 10 pc) |
| Absolute magnitude (MV) | −2.3[4] |
| Details[2] | |
| Mass | 1.9 M☉ |
| Radius | 106 R☉ |
| Luminosity | 2,145 L☉ |
| Surface gravity (log g) | +0.36 cgs |
| Temperature | 3,542 K |
| Metallicity [Fe/H] | −0.4 dex |
| Age | 1.5 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
14 Aquarii (abbreviated 14 Aqr) is red giant star. 14 Aquarii is the Flamsteed designation; it also bears the variable star designation IW Aquarii. It is a semiregular variable with an amplitude of a tenth of a magnitude, and shows variations on a timescale of just one day.[4]
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