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 | |
Database references | |
SIMBAD | data |
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]
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]
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 | |
Database references | |
SIMBAD | data |
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]
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]