23 Librae
23 Librae (23 Lib) is a star in the zodiac constellation Libra, making it visible from most of the Earth's surface. With an apparent visual magnitude of 6.45, it requires dark skies and good seeing conditions to see this star with the naked eye. It has a planetary system with two confirmed extrasolar planets.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Libra |
| Right ascension | 15h 13m 28.6669s |
| Declination | −25° 18′ 33.6534″ |
| Apparent magnitude (V) | 6.45 |
| Characteristics | |
| Spectral type | G5 V |
| B−V color index | +0.70 |
| Astrometry | |
| Radial velocity (Rv) | +4.7 km/s |
| Proper motion (μ) | RA: −400.147(26) mas/yr Dec.: −75.253(27) mas/yr |
| Parallax (π) | 38.1946 ± 0.0370 mas |
| Distance | 85.39 ± 0.08 ly (26.18 ± 0.03 pc) |
| Details | |
| Mass | 1.07+0.03 −0.08 M☉ |
| Radius | 1.25±0.04 R☉ |
| Surface gravity (log g) | 4.30 cgs |
| Temperature | 5585±50 K |
| Metallicity [Fe/H] | 0.25±0.02 dex |
| Rotational velocity (v sin i) | 2.17 km/s |
| Age | 8.4+1.6 −1.4 to 11.1+1.5 −3.7 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.