HD 35984
Star in the constellation Auriga
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HD 35984 is star in the northern constellation Auriga. It has an apparent magnitude of 6.20,[3] which, according to the Bortle scale, indicates it is faintly visible to the naked eye from dark rural skies. Parallax measurements by the Gaia satellite indicate it lies at a distance of roughly 260 light years.[2]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Auriga[1] |
| Right ascension | 05h 29m 40.65382s[2] |
| Declination | +29° 11′ 11.2704″[2] |
| Apparent magnitude (V) | 6.20[3] |
| Characteristics | |
| Evolutionary stage | main sequence or subgiant[2] |
| Spectral type | F6III[3] |
| U−B color index | +0.02[4] |
| B−V color index | +0.45[4] |
| Astrometry | |
| Radial velocity (Rv) | +13.98±0.15[2] km/s |
| Proper motion (μ) | RA: +28.262[2] mas/yr Dec.: −46.896[2] mas/yr |
| Parallax (π) | 12.5607±0.0293 mas[2] |
| Distance | 259.7 ± 0.6 ly (79.6 ± 0.2 pc) |
| Absolute magnitude (MV) | 1.50[5] |
| Details | |
| Mass | 1.31[6] M☉ |
| Radius | 3.26[6] R☉ |
| Luminosity | 16.7[6] L☉ |
| Surface gravity (log g) | 3.53[6] cgs |
| Temperature | 6,465[6] K |
| Metallicity [Fe/H] | 0.19[3] dex |
| Rotation | 29.5 days[7] |
| Rotational velocity (v sin i) | 40[8] km/s |
| Age | 1.26±0.12[9] Gyr |
| Other designations | |
| BD+29°909, HD 35984, HIP 25730, HR 1822, SAO 77205 | |
| Database references | |
| SIMBAD | data |
A stellar classification of F6III suggests that this is an evolved giant star that has consumed the supply of hydrogen at its core.[3] However, X-ray emission, variations in luminosity, and levels of lithium may indicate that this is instead a weak-lined T Tauri star—a low mass pre-main sequence star that is relatively poor in circumstellar matter.[10]
