HD 12661
Planetary orbits of the HD 12661 system | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aries |
| Right ascension | 02h 04m 34.2881s |
| Declination | +25° 24′ 51.514″ |
| Apparent magnitude (V) | 7.42 |
| Characteristics | |
| Evolutionary stage | subgiant |
| Spectral type | G6 V |
| U−B color index | +0.33 |
| B−V color index | +0.71 |
| Astrometry | |
| Proper motion (μ) | RA: −107.999±0.031 mas/yr Dec.: −173.299±0.026 mas/yr |
| Parallax (π) | 26.4614±0.0258 mas |
| Distance | 123.3 ± 0.1 ly (37.79 ± 0.04 pc) |
| Absolute magnitude (MV) | 4.58 |
| Details | |
| Mass | 1.07–1.10 M☉ |
| Radius | 1.096–1.12 R☉ |
| Luminosity | 1.22 L☉ |
| Surface gravity (log g) | 4.43 cgs |
| Temperature | 5,754 K |
| Metallicity [Fe/H] | 0.29 ± 0.05 dex |
| Rotational velocity (v sin i) | 1.20 km/s |
| Age | 7.17 Gyr |
| Other designations | |
| BD+24 298, HIP 9683, SAO 75125. | |
| Database references | |
| SIMBAD | data |
HD 12661 is a G-type main sequence star in the northern constellation of Aries. The star is slightly larger and more massive than the Sun, with an estimated age of seven billion years. It has two known extrasolar planets.