Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Hydra |
Right ascension | 08h 42m 25.12195s[1] |
Declination | +04° 34′ 41.1457″[1] |
Apparent magnitude (V) | +7.614[2] |
Characteristics | |
Spectral type | G0V |
U−B color index | ? |
B−V color index | 0.581[2] |
V−R color index | 0.4 |
R−I color index | 0.2 |
Variable type | “None” |
Astrometry | |
Radial velocity (Rv) | 3.90±0.13[1] km/s |
Proper motion (μ) | RA: 24.666±0.025 mas/yr[1] Dec.: −200.238±0.019 mas/yr[1] |
Parallax (π) | 17.4242 ± 0.0247 mas[1] |
Distance | 187.2 ± 0.3 ly (57.39 ± 0.08 pc) |
Absolute magnitude (MV) | +3.57 ± 0.15 |
Details | |
Mass | 1.24[2] M☉ |
Radius | 1.64 ± 0.19[2] R☉ |
Luminosity (bolometric) | 3.037 ± 0.485[2] L☉ |
Surface gravity (log g) | 4.4 ± 0.15[2] cgs |
Temperature | 5960 ± 100[2] K |
Metallicity [Fe/H] | +0.13[2] dex |
Rotational velocity (v sin i) | 4.3[2] km/s |
Age | 3.7 ± 0.4[2] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
HD 74156 is a yellow dwarf star (spectral type G0V) in the constellation of Hydra, 187 light years from the Solar System.[1] It is known to be orbited by two giant planets.