HD 208177
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 21h 54m 35.91630s |
| Declination | −03° 18′ 04.5532″ |
| Apparent magnitude (V) | 6.20 |
| Characteristics | |
| Spectral type | F5IV |
| U−B color index | 0.07 |
| B−V color index | 0.48 |
| Astrometry | |
| Radial velocity (Rv) | −20 km/s |
| Proper motion (μ) | RA: +29.06 mas/yr Dec.: −29.87 mas/yr |
| Parallax (π) | 16.89±1.32 mas |
| Distance | 190 ± 20 ly (59 ± 5 pc) |
| Absolute magnitude (MV) | +2.05 |
| Details | |
| Mass | 1.63 M☉ |
| Surface gravity (log g) | 3.94 cgs |
| Temperature | 6,577 K |
| Metallicity [Fe/H] | 0.30 dex |
| Age | 1.70 Gyr |
| Mass | 0.32 M☉ |
| Other designations | |
| BD−03°5329, HD 208177, HIP 108144, HR 8363, SAO 145735 | |
| Database references | |
| SIMBAD | data |
| B | |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
HD 208177 is a double star system in the equatorial constellation of Aquarius. They are faintly visible to the naked eye with an apparent magnitude of 6.20. The pair have an angular separation of 19.113″. The primary component is an evolved subgiant star with a stellar classification of F5IV. It has an estimated 163% of the Sun's mass and is about 1.7 billion years old