| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 20h 57m 10.57663s[1] |
| Declination | +00° 27′ 49.6073″[1] |
| Apparent magnitude (V) | 6.065[2] |
| Characteristics | |
| Spectral type | K2III[2] |
| U−B color index | +1.29[3] |
| B−V color index | +1.22[3] |
| Astrometry | |
| Radial velocity (Rv) | −26.47[2] km/s |
| Proper motion (μ) | RA: +10.70[1] mas/yr Dec.: −62.77[1] mas/yr |
| Parallax (π) | 10.64 ± 0.44 mas[1] |
| Distance | 310 ± 10 ly (94 ± 4 pc) |
| Details | |
| Mass | 1.20[2] M☉ |
| Luminosity | 1.65[2] L☉ |
| Surface gravity (log g) | 2.49[2] cgs |
| Temperature | 4,605[2] K |
| Metallicity [Fe/H] | 0.19[2] dex |
| Rotational velocity (v sin i) | 2.7[4] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 199442 is a giant star situated in the Aquarius constellation. It is located about 310 light years from the Solar System.
van Leeuwen2007 was invoked but never defined (see the help page).aj133_6_2464 was invoked but never defined (see the help page).MERMILLIOD was invoked but never defined (see the help page).aj135_1_209 was invoked but never defined (see the help page).