HD 199442
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 20h 57m 10.57748s |
| Declination | +00° 27′ 49.6076″ |
| Apparent magnitude (V) | 6.065 |
| Characteristics | |
| Evolutionary stage | red giant branch |
| Spectral type | K2III |
| U−B color index | +1.29 |
| B−V color index | +1.22 |
| Astrometry | |
| Radial velocity (Rv) | −26.47 km/s |
| Proper motion (μ) | RA: +12.078 mas/yr Dec.: −62.766 mas/yr |
| Parallax (π) | 10.0850±0.0398 mas |
| Distance | 323 ± 1 ly (99.2 ± 0.4 pc) |
| Absolute magnitude (MV) | +1.2 |
| Details | |
| Mass | 1.4 M☉ |
| Radius | 11.5 R☉ |
| Luminosity | 48 L☉ |
| Surface gravity (log g) | 2.44 cgs |
| Temperature | 4,625 K |
| Metallicity [Fe/H] | 0.01 dex |
| Rotational velocity (v sin i) | 2.7 km/s |
| Age | 4.5 Gyr |
| Other designations | |
| ADS 14457 A, BD−00°4132, HIP 103414, HR 8017, SAO 126396 | |
| Database references | |
| SIMBAD | data |
HD 199442 is a giant star situated in the Aquarius constellation. It is located about 323 light years from the Solar System.