| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 39m 16.03872s[1] |
| Declination | −10° 01′ 40.1750″[1] |
| Apparent magnitude (V) | 6.93[2] |
| Characteristics | |
| Spectral type | G2/3 IV/V[3] |
| B−V color index | 0.619±0.009[2] |
| Astrometry | |
| Radial velocity (Rv) | +10.7±0.5[4] km/s |
| Proper motion (μ) | RA: −60.940[1] mas/yr Dec.: +3.803[1] mas/yr |
| Parallax (π) | 10.4508 ± 0.1554 mas[1] |
| Distance | 312 ± 5 ly (96 ± 1 pc) |
| Absolute magnitude (MV) | 2.75[2] |
| Details[5] | |
| Mass | 1.45±0.06 M☉ |
| Radius | 2.78±0.07 R☉ |
| Luminosity | 13.133±0.225[1] L☉ |
| Surface gravity (log g) | 3.708±0.013 cgs |
| Temperature | 5,926±97 K |
| Metallicity [Fe/H] | −0.02±0.11 dex |
| Rotational velocity (v sin i) | 8.75 km/s |
| Age | 2.63±0.26 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
64 Aquarii is a star located 312 light years away from the Sun in the zodiac constellation of Aquarius. 64 Aquarii is its Flamsteed designation. With an apparent visual magnitude of 6.93,[2] it is too faint to be readily visible to the naked eye. The star is moving further from the Earth with a heliocentric radial velocity of +11 km/s.[4]
The stellar classification for this star is G2/3 IV/V,[3] which indicates the spectrum displays mixed traits of a G-type main-sequence star and a more evolved subgiant star. It is 2.6 billion years old and is spinning with a projected rotational velocity of 8.75 km/s. The star has 1.45 times the mass of the Sun and 2.8 times the Sun's radius.[5] It is radiating 13[1] times the luminosity of the Sun from its photosphere at an effective temperature of 5,926 K.[5]
GaiaDR2 was invoked but never defined (see the help page).Anderson2012 was invoked but never defined (see the help page).Houk1999 was invoked but never defined (see the help page).Gontcharov2006 was invoked but never defined (see the help page).Lund2016 was invoked but never defined (see the help page).SIMBAD was invoked but never defined (see the help page).