HD 190056
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 20h 04m 19.59387s |
| Declination | −32° 03′ 22.6729″ |
| Apparent magnitude (V) | 4.99 |
| Characteristics | |
| Spectral type | K1III |
| U−B color index | +1.18 |
| B−V color index | +1.21 |
| Variable type | suspected |
| Astrometry | |
| Radial velocity (Rv) | -11.80 km/s |
| Proper motion (μ) | RA: +45.07 mas/yr Dec.: -11.74 mas/yr |
| Parallax (π) | 11.22±0.25 mas |
| Distance | 291 ± 6 ly (89 ± 2 pc) |
| Absolute magnitude (MV) | 0.24 |
| Details | |
| Mass | 1.48 M☉ |
| Radius | 19 R☉ |
| Luminosity | 121 L☉ |
| Surface gravity (log g) | 2.05 cgs |
| Temperature | 4,467 K |
| Metallicity [Fe/H] | -0.53 dex |
| Rotational velocity (v sin i) | < 1.0 km/s |
| Other designations | |
| CD-32°15682, CCDM J20043-3203A, FK5 3606, GC 27811, HIP 98842, HR 7659, HD 190056, NSV 12746, SAO 211782, WDS J20043-3203A | |
| Database references | |
| SIMBAD | data |
HD 190056 is a class K1III (orange giant) star in the constellation Sagittarius. Its apparent magnitude is 4.99 and it is approximately 291 light years away based on parallax.
It is a suspected variable, and the primary has one companion, B, with magnitude 12.7 and separation 54.4".