HD 113538
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 04m 57.47645s |
| Declination | −52° 26′ 34.5284″ |
| Apparent magnitude (V) | 9.05 |
| Characteristics | |
| Spectral type | K9Vk: |
| B−V color index | 1.362±0.009 |
| Astrometry | |
| Radial velocity (Rv) | 39.23±0.012 km/s |
| Proper motion (μ) | RA: −786.038 mas/yr Dec.: −795.591 mas/yr |
| Parallax (π) | 61.3899±0.0523 mas |
| Distance | 53.13 ± 0.05 ly (16.29 ± 0.01 pc) |
| Absolute magnitude (MV) | 8.03 |
| Details | |
| Mass | 0.585±0.05 M☉ |
| Radius | 0.53±0.02 R☉ |
| Luminosity | 0.127 L☉ |
| Surface gravity (log g) | 3.79±0.53 cgs |
| Temperature | 4,462±145 K |
| Metallicity [Fe/H] | −0.24±0.06 dex |
| Age | 4.3±4.0 Gyr |
| Other designations | |
| CD−51 7244, GJ 9425, GJ 496.1, HD 113538, HIP 63833, LFT 966, LHS 344 | |
| Database references | |
| SIMBAD | data |
HD 113538 (Gliese 496.1) is a star with two planetary companions in the southern constellation of Centaurus. It is much too faint to be viewed with the naked eye at an apparent visual magnitude of 9.05. The distance to this star is 53 light years and it is drifting further away with a radial velocity of +39 km/s.
This is a K-type main-sequence star of a late spectral type, classified as K9Vk:. It displays chromospheric activity with a stellar cycle of at least four years and is metal poor. The star has 58.5% of the mass and 53% of the radius of the Sun. It is radiating just 12.7% of the luminosity of the Sun from its photosphere at an effective temperature of 4,462 K.