Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aquarius [1] |
Right ascension | 23h 17m 40.08278s [2] |
Declination | −11° 42′ 46.5910″ [2] |
Apparent magnitude (V) | 6.33 [3] |
Characteristics | |
Evolutionary stage | main sequence [4] |
Spectral type | A1/A2IV/V [5] |
U−B color index | +0.00 [3] |
B−V color index | +0.05 [3] |
Astrometry | |
Radial velocity (Rv) | 2.2 [6] km/s |
Proper motion (μ) | RA: +40.58 [2] mas/yr Dec.: +5.32 [2] mas/yr |
Parallax (π) | 8.24±0.53 mas [2] |
Distance | 400 ± 30 ly (121 ± 8 pc) |
Absolute magnitude (MV) | +0.92 [1] |
Details | |
Mass | 2.5 [7] M☉ |
Radius | 3.0 [7] R☉ |
Luminosity | 72 [7] L☉ |
Surface gravity (log g) | 3.87 [7] cgs |
Temperature | 9,661 [7] K |
Metallicity [Fe/H] | −0.01 [8] dex |
Rotational velocity (v sin i) | 196 [4] km/s |
Age | 462 [8] Myr |
Other designations | |
BD−12°6461, HD 219659, HIP 115015, HR 8856, SAO 165609. | |
Database references | |
SIMBAD | data |
HD 219659 is suspected variable star in the equatorial constellation of Aquarius.