| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius[1] |
| Right ascension | 20h 57m 10.57748s[2] |
| Declination | +00° 27′ 49.6076″[2] |
| Apparent magnitude (V) | 6.065[3] |
| Characteristics | |
| Evolutionary stage | red giant branch[2] |
| Spectral type | K2III[3] |
| U−Bcolor index | +1.29[4] |
| B−Vcolor index | +1.22[4] |
| Astrometry | |
| Radial velocity (Rv) | −26.47[3] km/s |
| Proper motion (μ) | RA: +12.078[2]mas/yr Dec.: −62.766[2]mas/yr |
| Parallax (π) | 10.0850±0.0398 mas[2] |
| Distance | 323 ± 1 ly (99.2 ± 0.4 pc) |
| Absolute magnitude (MV) | +1.2[1] |
| Details | |
| Mass | 1.4[5] M☉ |
| Radius | 11.5[2] R☉ |
| Luminosity | 48[2] L☉ |
| Surface gravity (log g) | 2.44[5] cgs |
| Temperature | 4,625[5] K |
| Metallicity[Fe/H] | 0.01[5] dex |
| Rotational velocity (v sin i) | 2.7[6] km/s |
| Age | 4.5[2] Gyr |
| Other designations | |
| ADS 14457 A,BD−00°4132,HIP 103414,HR 8017,SAO 126396 | |
| Database references | |
| SIMBAD | data |
HD 199442 is agiant star situated in theAquarius constellation. It is located about 323light years from theSolar System.
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 | This binary or multiple star system–related article is astub. You can help Wikipedia byadding missing information. |
