AF Leporis
AF Leporis, also known as HD 35850, is an F-type main-sequence star located 87.5 light-years (26.8 parsecs) away from the Solar System in the constellation of Lepus. With an apparent magnitude of 6.3, it is near the limit of naked eye visibility under ideal conditions. While some studies consider it to be a close spectroscopic binary with a separation of 0.021 AU, other studies show no evidence of binarity, and it is likely that the supposed binarity is an artifact resulting from the presence of starspots.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Lepus |
| Right ascension | 05h 27m 04.76333s |
| Declination | −11° 54′ 03.4660″ |
| Apparent magnitude (V) | 6.26 - 6.35 |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | F8V(n)k: |
| Apparent magnitude (B) | 6.832±0.015 |
| Apparent magnitude (V) | 6.295±0.010 |
| Apparent magnitude (G) | 6.209±0.003 |
| Apparent magnitude (J) | 5.268±0.027 |
| Apparent magnitude (H) | 5.087±0.026 |
| Apparent magnitude (K) | 4.926±0.021 |
| Variable type | RS CVn |
| Astrometry | |
| Radial velocity (Rv) | 21.10±0.37 km/s |
| Proper motion (μ) | RA: 16.915 mas/yr Dec.: −49.318 mas/yr |
| Parallax (π) | 37.2539 ± 0.0195 mas |
| Distance | 87.55 ± 0.05 ly (26.84 ± 0.01 pc) |
| Absolute magnitude (MV) | 4.14 |
| Details | |
| Mass | 1.09±0.06 M☉ |
| Radius | 1.25±0.06 R☉ |
| Luminosity (bolometric) | 1.84±0.01 L☉ |
| Surface gravity (log g) | 4.30±0.05 cgs |
| Temperature | 6130±60 K |
| Metallicity [Fe/H] | +0.19±0.02 dex |
| Rotation | 0.9660±0.0023 d |
| Rotational velocity (v sin i) | 50±5 km/s |
| Age | 24±3 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
AF Leporis is a member of the Beta Pictoris moving group, with an astronomically young age of about 24 million years. It hosts a circumstellar disk and one known exoplanet.
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