Eta Leporis

Eta Leporis, Latinised from η Leporis, is a single,^[10] yellow-white-hued star in the southern constellation of Lepus, the hare. It is visible to the naked eye with an apparent visual magnitude of approximately 3.72.^[2] The annual parallax shift of 67.21 mas yields a distance estimate of 49 light-years. It is moving closer to the Sun with a radial velocity of −1.6 km/s.^[5]

η Leporis

Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Lepus
Right ascension	05h 56m 24.29300s[1]
Declination	−14° 10′ 03.7189″[1]
Apparent magnitude (V)	3.72[2]
Characteristics
Spectral type	F2 V[3]
U−B color index	+0.01[2]
B−V color index	+0.33[2]
R−I color index	+0.16[4]
Astrometry
Radial velocity (Rv)	−1.6±0.2[5] km/s
Proper motion (μ)	RA: −42.06[1] mas/yr Dec.: +139.26[1] mas/yr
Parallax (π)	67.21±0.25 mas[1]
Distance	48.5 ± 0.2 ly (14.88 ± 0.06 pc)
Absolute magnitude (MV)	+2.85[6]
Details
Mass	1.42[5] M☉
Radius	1.52[7] R☉
Luminosity	6.03[6] L☉
Surface gravity (log g)	4.13[5] cgs
Temperature	6,899±80[5] K
Metallicity [Fe/H]	−0.19[5] dex
Rotational velocity (v sin i)	26[8] km/s
Age	1.80[5] Gyr
Other designations
η Lep, 16 Leporis, BD−14°1286, FK5 226, GC 7492, GJ 225, HD 40136, HIP 28103, HR 2085, SAO 150957, PPM 216474[9]
Database references
SIMBAD	data

This is an ordinary F-type main-sequence star with a stellar classification of F2 V.^[3] It is about 1.8^[5] billion years old and spinning with a projected rotational velocity of 26 km/s.^[8] The star has 1.4^[5] times the mass of the Sun and 1.5^[7] times the Sun's radius. It shines with six^[6] times the Sun's luminosity, which is being radiated from its photosphere at an effective temperature of around 6,899 K.^[5] Using the IRS instrument on the Spitzer Space Telescope, excess infrared emission has been observed from the star, which can be modeled by a dust disk extending from 1 to 16 astronomical units from Eta Leporis.^[11]