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]