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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 20h59m 54.82678s[1] |
| Declination | −13° 03′ 05.8699″[1] |
| Apparent magnitude (V) | 6.60[2] |
| Characteristics | |
| Spectral type | A3/4 IV[3] |
| Astrometry | |
| Proper motion (μ) | RA: −27.46[1] mas/yr Dec.: 1.89[1] mas/yr |
| Parallax (π) | 11.40 ± 0.85 mas[1] |
| Distance | 290 ± 20 ly (88 ± 7 pc) |
| Details | |
| Mass | 1.9[4] M☉ |
| Radius | 2.27[4] R☉ |
| Luminosity | 19[4] L☉ |
| Surface gravity (log g) | 4.06[5] cgs |
| Temperature | 8,008[4] K |
| Metallicity [Fe/H] | 0.11[5] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
8 Aquarii (abbreviated 8 Aqr) is a blue-white sub-giant of the spectral class A4IV in the constellation Aquarius. 8 Aquarii is the Flamsteed designation. It is approximately 290 light-years away from Earth, based on parallax.[1] It is approximately 1.7 solar masses and about 3 times hotter than the Sun and thus allows lines of ionized metals with an abundance of metals.[citation needed]
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