HD 33142
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Lepus |
| Right ascension | 05h 07m 35.54139s |
| Declination | −13° 59′ 11.3368″ |
| Apparent magnitude (V) | 7.96 |
| Characteristics | |
| Evolutionary stage | Red-giant branch star |
| Spectral type | K0III |
| B−V color index | 0.935 |
| J−H color index | 0.442 |
| J−K color index | 0.553 |
| Astrometry | |
| Radial velocity (Rv) | 33.980499 km/s |
| Proper motion (μ) | RA: -7.488 mas/yr Dec.: 33.693 mas/yr |
| Parallax (π) | 8.2719±0.0202 mas |
| Distance | 394.3 ± 1.0 ly (120.9 ± 0.3 pc) |
| Absolute magnitude (MV) | 2.24 |
| Details | |
| Mass | 1.52±0.03 M☉ |
| Radius | 4.17+0.03 −0.07 R☉ |
| Luminosity | 10.00+0.09 −0.23 L☉ |
| Surface gravity (log g) | 3.375+0.021 −0.002 cgs |
| Temperature | 5025.4+23.6 −15.5 K |
| Metallicity [Fe/H] | 0.06±0.01 dex |
| Rotational velocity (v sin i) | ≤2 km/s |
| Other designations | |
| BD−14° 1051, Gaia DR3 2986948238799721216, GC 2232, HD 33142, HIP 23844, SAO 150161, PPM 215317, TIC 169397663, TYC 5342-891-1, GSC 05342-00891, 2MASS J05073553-1359113 | |
| Database references | |
| SIMBAD | data |
HD 33142 is a solitary 8th-magnitude red giant located about 394 light-years (121 pc) away in the southern constellation of Lepus. It is orbited by three confirmed exoplanets, namely the Jupiter-sized planets HD 33142 b and c, and a Saturn-like planet, d, located closer to the star.