HD 103774
HD 103774 is a star with a close orbiting planetary companion in the southern constellation of Corvus. With an apparent visual magnitude of 7.13, it is too faint to be readily visible to the naked eye. Parallax measurements provide a distance estimate of 184 light years from the Sun. It is drifting closer with a radial velocity of −3 km/s. The star has an absolute magnitude of 3.41.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Corvus |
| Right ascension | 11h 56m 55.58949s |
| Declination | −12° 6′ 28.4700″ |
| Apparent magnitude (V) | 7.13 |
| Characteristics | |
| Spectral type | F6 V |
| B−V color index | 0.503±0.014 |
| Astrometry | |
| Radial velocity (Rv) | −3.19±0.17 km/s |
| Proper motion (μ) | RA: −124.888 mas/yr Dec.: −20.159 mas/yr |
| Parallax (π) | 17.6990 ± 0.0555 mas |
| Distance | 184.3 ± 0.6 ly (56.5 ± 0.2 pc) |
| Absolute magnitude (MV) | 3.41 |
| Details | |
| Mass | 1.38±0.01 M☉ |
| Radius | 1.56±0.03 R☉ |
| Luminosity | 3.7±0.1 L☉ |
| Surface gravity (log g) | 4.183±0.002 cgs |
| Temperature | 6,391±27 K |
| Metallicity [Fe/H] | 0.29 dex |
| Rotational velocity (v sin i) | 7.95 km/s |
| Age | 2.0±0.1 Gyr 1.05±0.64 Gyr 0.26 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
The stellar classification of HD 103774 is F6 V, indicating this is an F-type main-sequence star that is generating energy through core hydrogen fusion. It is a young star with age estimates ranging from 260 million up to 2 billion years of age. The star is mildly active and is spinning with a projected rotational velocity of 8 km/s. It has 1.4 times the mass and 1.56 times the radius of the Sun. The star is radiating 3.7 times the luminosity of the Sun from its photosphere at an effective temperature of 6,391 K.