HD 219659
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 23h 17m 40.08278s |
| Declination | −11° 42′ 46.5910″ |
| Apparent magnitude (V) | 6.33 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | A1/A2IV/V |
| U−B color index | +0.00 |
| B−V color index | +0.05 |
| Astrometry | |
| Radial velocity (Rv) | 2.2 km/s |
| Proper motion (μ) | RA: +40.58 mas/yr Dec.: +5.32 mas/yr |
| Parallax (π) | 8.24±0.53 mas |
| Distance | 400 ± 30 ly (121 ± 8 pc) |
| Absolute magnitude (MV) | +0.92 |
| Details | |
| Mass | 2.5 M☉ |
| Radius | 3.0 R☉ |
| Luminosity | 72 L☉ |
| Surface gravity (log g) | 3.87 cgs |
| Temperature | 9,661 K |
| Metallicity [Fe/H] | −0.01 dex |
| Rotational velocity (v sin i) | 196 km/s |
| Age | 462 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.