18 Aquarii
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Aquarius |
| Right ascension | 21h 24m 11.49206s[1] |
| Declination | −12° 52′ 41.1928″[1] |
| Apparent magnitude (V) | 5.49[2] |
| Characteristics | |
| Spectral type | F0 V[3] |
| B−V color index | +0.29[2] |
| Astrometry | |
| Proper motion (μ) | RA: +89.60[1] mas/yr Dec.: +8.62[1] mas/yr |
| Parallax (π) | 21.23 ± 0.29 mas |
| Distance | 154 ± 2 ly (47.1 ± 0.6 pc) |
| Details | |
| Surface gravity (log g) | 3.98[4] cgs |
| Temperature | 7,194[4] K |
| Metallicity [Fe/H] | –0.16[4] dex |
| Rotational velocity (v sin i) | 138[5] km/s |
| Other designations | |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
|
18 Aquarii (abbreviated 18 Aqr) is a star in the equatorial constellation of Aquarius. 18 Aquarii is the Flamsteed designation. Its apparent magnitude is 5.49[2] and it is 154 light-years (47 parsecs) from Earth.[1] This is an F-type main sequence star with a stellar classification of F0 V.[3]
References
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