HD 10647
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Eridanus |
| Right ascension | 01h 42m 29.3145s |
| Declination | −53° 44′ 26.991″ |
| Apparent magnitude (V) | +5.52 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | F9V |
| B−V color index | 0.551 |
| Astrometry | |
| Radial velocity (Rv) | 27.64±0.12 km/s |
| Proper motion (μ) | RA: 166.041(34) mas/yr Dec.: −105.496(46) mas/yr |
| Parallax (π) | 57.6409±0.0453 mas |
| Distance | 56.58 ± 0.04 ly (17.35 ± 0.01 pc) |
| Absolute magnitude (MV) | 4.31 |
| Details | |
| Mass | 1.15+0.01 −0.02 M☉ |
| Radius | 1.10±0.02 R☉ |
| Luminosity | 1.41 L☉ |
| Surface gravity (log g) | 4.55±0.02 cgs |
| Temperature | 6,207±11 K |
| Metallicity [Fe/H] | −0.027±0.008 dex |
| Rotation | 10±3 |
| Rotational velocity (v sin i) | 4.9 km/s |
| Age | 0.70+0.30 −0.24 Gyr |
| Other designations | |
| q1 Eridani, 5 G. Eridani, CPD−54°365, GJ 3109, HIP 7978, HR 506, SAO 232501 | |
| Database references | |
| SIMBAD | data |
HD 10647 (q1 Eridani) is a 6th-magnitude yellow-white dwarf star, 57 light-years away in the constellation of Eridanus. The star is visible to the unaided eye under very dark skies. It is slightly hotter and more luminous than the Sun, and at 700 million years old, it is also younger. An extrasolar planet was discovered orbiting this star in 2003.