HD 208177
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 6.20[3] |
| Characteristics | |
| Spectral type | F5IV[4] |
| U−B Template:Engvar | 0.07[3] |
| B−V Template:Engvar | 0.48[3] |
| Astrometry | |
| Radial velocity (Rv) | −20[5] km/s |
| Proper motion (μ) | RA: +29.06[2] mas/yr Dec.: −29.87[2] mas/yr |
| Parallax (π) | 16.89±1.32 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | +2.05[1] |
| Details | |
| Mass | 1.63[6] Template:Solar mass |
| Surface gravity (log g) | 3.94[7] cgs |
| Temperature | 6,577[7] K |
| Metallicity [Fe/H] | 0.30[7] dex |
| Age | 1.70[7] Gyr |
| Mass | 0.32[6] Template:Solar mass |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| 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.) | |
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HD 208177 is a double star system in the equatorial constellation of Aquarius.[6] They are faintly visible to the naked eye with an apparent magnitude of 6.20.[3] The pair have an angular separation of 19.113″.[8] The primary component is an evolved subgiant star with a stellar classification of F5IV.[4] It has an estimated 163%[6] of the Sun's mass and is about 1.7 billion years old[7]
References
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