AF Leporis

AF Leporis
Location of AF Leporis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Lepus
Right ascension 05h 27m 04.76333s[1]
Declination −11° 54′ 03.4660″[1]
Apparent magnitude (V) 6.26 - 6.35[2]
Characteristics
Evolutionary stage Main sequence
Spectral type F8V(n)k:[3]
Apparent magnitude (B) 6.832±0.015[4]
Apparent magnitude (V) 6.295±0.010[4]
Apparent magnitude (G) 6.209±0.003[1]
Apparent magnitude (J) 5.268±0.027[4]
Apparent magnitude (H) 5.087±0.026[4]
Apparent magnitude (K) 4.926±0.021[4]
Variable type RS CVn[2]
Astrometry
Radial velocity (Rv)21.10±0.37[1] km/s
Proper motion (μ) RA: 16.915 mas/yr[1]
Dec.: −49.318 mas/yr[1]
Parallax (π)37.2539 ± 0.0195 mas[1]
Distance87.55 ± 0.05 ly
(26.84 ± 0.01 pc)
Absolute magnitude (MV)4.14[5]
Details
Mass1.09±0.06[6] M☉
Radius1.25±0.06[7] R☉
Luminosity (bolometric)1.84±0.01[8] L☉
Surface gravity (log g)4.30±0.05[6] cgs
Temperature6130±60[7] K
Metallicity [Fe/H]+0.19±0.02[7] dex
Rotation0.9660±0.0023 d[9]
Rotational velocity (v sin i)50±5[7] km/s
Age24±3[7] Myr
Other designations
AF Lep, NSV 16310, BD−12 1169, FK5 2409, HD 35850, HIP 25486, HR 1817, SAO 150461, PPM 215789, TIC 94945758, TYC 5340-1141-1, GCRV 3284, GSC 05340-01141, IRAS 05247-1156[10]
Database references
SIMBADdata

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,[8] other studies show no evidence of binarity, and it is likely that the supposed binarity is an artifact resulting from the presence of starspots.[9][4]

A light curve for AF Leporis, plotted from TESS data[11]

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.[7]

  1. ^ a b c d e f Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference gcvs was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Gray2006 was invoked but never defined (see the help page).
  4. ^ a b c d e f Cite error: The named reference Mesa2023 was invoked but never defined (see the help page).
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  6. ^ a b Cite error: The named reference Zhang2023 was invoked but never defined (see the help page).
  7. ^ a b c d e f Cite error: The named reference Franson2023 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Pawellek2021 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Järvinen2015 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference MAST was invoked but never defined (see the help page).