HD 10647
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 1.75 billion years old, it is also younger. An extrasolar planet was discovered orbiting this star in 2003.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Eridanus |
| Right ascension | 01h 42m 29.3149s |
| Declination | −53° 44′ 26.9912″ |
| Apparent magnitude (V) | 5.52 |
| Characteristics | |
| Spectral type | F9V |
| B−V color index | 0.551 |
| Astrometry | |
| Radial velocity (Rv) | 12.9 km/s |
| Proper motion (μ) | RA: 165.832±0.099 mas/yr Dec.: −105.515±0.097 mas/yr |
| Parallax (π) | 57.6556 ± 0.0737 mas |
| Distance | 56.57 ± 0.07 ly (17.34 ± 0.02 pc) |
| Absolute magnitude (MV) | 4.32 |
| Details | |
| Mass | 1.11 ± 0.02 M☉ |
| Radius | 1.10 ± 0.02 R☉ |
| Luminosity | 1.41 L☉ |
| Temperature | 6,218 ± 20 K |
| Metallicity [Fe/H] | 0.00 ± 0.01 dex |
| Rotation | 10 ± 3 |
| Rotational velocity (v sin i) | 4.9 km/s |
| Age | 1.4 ± 0.9 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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