Gliese 146
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Horologium |
| Right ascension | 03h 35m 00.93987s |
| Declination | −48° 25′ 08.9085″ |
| Apparent magnitude (V) | 8.64 |
| Characteristics | |
| Evolutionary stage | Main Sequence |
| Spectral type | K6.5V |
| U−B color index | +1.24 |
| B−V color index | +1.30 |
| Variable type | suspected, range 8.57 to 8.7 mag, NSV 1203 |
| Astrometry | |
| Radial velocity (Rv) | +21.38±0.13 km/s |
| Proper motion (μ) | RA: 404.441 mas/yr Dec.: 307.498 mas/yr |
| Parallax (π) | 73.5199±0.0164 mas |
| Distance | 44.363 ± 0.010 ly (13.602 ± 0.003 pc) |
| Details | |
| Mass | 0.684±0.013 M☉ |
| Radius | 0.674±0.020 R☉ |
| Luminosity | 0.121 L☉ |
| Surface gravity (log g) | 4.69±0.05 cgs |
| Temperature | 4385±21 K |
| Metallicity [Fe/H] | -0.08±0.02 dex |
| Rotation | 34.99+0.58 −0.53 days |
| Age | 970 Myr |
| Other designations | |
| CD−48° 1011, GJ 146, HD 22496, HIP 16711, SAO 85397, LTT 1698, 2MASS J03350093-4825089 | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
Gliese 146 is a star with an orbiting exoplanet in the constellation Horologium. Gliese 146 is also catalogued as HD 22496, HIP 16711, SAO-216392, and LHS 1563. With an apparent visual magnitude of 8.64, it is too faint to be visible to the naked eye. Gliese 146 is located at a distance of 44.4 light years based on parallax measurements, and is drifting further away with a heliocentric radial velocity of +21 km/s.
This is an ordinary K-type main-sequence star with a stellar classification of K6.5V. It has 68% of the mass of the Sun and 67% of the Sun's girth. Gliese 146 is radiating 12% of the luminosity of the Sun from its photosphere at an effective temperature of 4,385 K. Classified as a suspected variable star, Gliese 146 was found to be a flare star, with average flare frequency 0.23 flares per day.
Its velocity relative to the Sun is 38.1 km/second, and its galactic orbit ranges between 20,800 and 25,400 light years from the center of the Galaxy, placing it within a thin disk. It belongs to the Hyades supercluster of stars, and is one of 155 K-type stars within 50 light years.