HD 117618
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 32m 25.55562s |
| Declination | −47° 16′ 16.9132″ |
| Apparent magnitude (V) | 7.17 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | G0 V |
| B−V color index | 0.603±0.010 |
| Astrometry | |
| Radial velocity (Rv) | +1.60±0.76 km/s |
| Proper motion (μ) | RA: +25.214 mas/yr Dec.: −125.428 mas/yr |
| Parallax (π) | 26.5429±0.0214 mas |
| Distance | 122.88 ± 0.10 ly (37.67 ± 0.03 pc) |
| Absolute magnitude (MV) | 4.27 |
| Details | |
| Mass | 1.10±0.02 M☉ |
| Radius | 1.17±0.04 R☉ |
| Luminosity | 1.6±0.1 L☉ |
| Surface gravity (log g) | 4.34±0.03 cgs |
| Temperature | 6,019±50 K |
| Metallicity [Fe/H] | +0.03±0.01 dex |
| Rotational velocity (v sin i) | 3.67 km/s |
| Age | 4.0±1.3 Gyr |
| Other designations | |
| Dofida, CD−46°8708, GC 18290, HD 117618, HIP 66047, SAO 224228 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
HD 117618, named Dofida by the IAU, is a single, yellow-hued star in the southern constellation of Centaurus. With an apparent visual magnitude of 7.17, it is too faint to be visible to the naked eyes of a typical observer. The distance to this star, as determined from its annual parallax shift of 26.54 mas as seen from Earth's orbit, is 123 light years. It is moving further away with a heliocentric radial velocity of around +1.6 km/s.
This star is similar to the Sun, being a G-type main-sequence star with a stellar classification of G0 V. It is about 10% more massive and 17% larger than the Sun, with an estimated age of roughly four billion years and a projected rotational velocity of 3.67 km/s. The star is radiating 1.6 times the Sun's luminosity from its photosphere at an effective temperature of 6,019 K.