Eta Leporis, a white main-sequence star in Lepus
Eta Leporis is a white main-sequence star in the constellation Lepus. At 49 light years away, it is the 363rd brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.71.
Eta Leporis (HIP 28103)
Eta Leporis is a white main-sequence star in the constellation Lepus. At 49 light years away, it is the 363rd brightest star in the Earth's sky, where it shines at an apparent visual magnitude of 3.71. The star's age is estimated to be 1.6 billion years but is certainly no less than 1.4 billion years and no greater than 1.8 billion years. The iron abundance of Eta Leporis is -0.06 (87.1% of the Sun). It is moving through the Galaxy at a speed of 10.5 km/s relative to the Sun. Its projected Galactic orbit carries it between 24,100 and 39,500 light years from the center of the Galaxy.
Sky position: RA 5h 56.4m, Dec -14° 10.2'
Common designations: Eta Leporis, 16 Leporis, HIP 28103, HD 40136, Gliese 225
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Brightest stars in Lepus:
(list all)
| Rank | Mag. | Star |
| 1 | 2.58 | Arneb |
| 2 | 2.81 | Nihal |
| 3 | 3.19 | Epsilon Leporis |
| 4 | 3.29 | Mu Leporis |
| 5 | 3.55 | Zeta Leporis |
| 6 | 3.59 | Gamma Leporis |
7
| 3.71
) Eta Leporis
| Rank | Mag. | Star |
| 8 | 3.76 | Delta Leporis |
| 9 | 4.29 | Lambda Leporis |
| 10 | 4.36 | Kappa Leporis |
| 11 | 4.45 | Iota Leporis |
| 12 | 4.67 | Theta Leporis |
| 13 | 4.70 | HR 1762 |
| 14 | 4.91 | HR 1621 |
| 15 | 4.92 | 17 Leporis |
| 16 | 5.01 | HR 1628 |
| 17 | 5.03 | HD 41312 |
Hover over other bright stars to identify or click to jump.
Galactic Orbit of Eta Leporis
(compared to the Sun)
E
ccentricity: 24.2% vs. 16.0%Angle φ : 11.1°vs. 26.0°
Semi-major axis : 9,744 pc vs. 8,686 pc
Semi-minor axis: 9,454 pc vs. 8,574 pc
Focus-to-center
: 2,360 pcvs. 1,388 pcSemilatus rectum : 9,172 pc vs. 8,464 pc
Perigalacticon: 7,384 pc vs. 7,297 pc
Apogalacticon
: 12,104 pcvs. 10,074 pcSome Tabulated XHIP Data for Eta Leporis
(see also: SIMBAD)
Astrometry
2007A&A...474..653V
| Position | Proper Motion | |
| Right Ascension: | 89.10132629° ±0.14 mas | -42.06 ±0.19 mas/yr. |
| Declination: | -14.16803817° ±0.13 mas | 139.26 ±0.17 mas/yr. |
| Galactic Longitude: | 219.75564792° | -144.23 mas/yr. |
| Galactic Latitude: | -18.47144104° | 18.97 mas/yr. |
Parallax: 67.21 ± 0.25 mas
Spectrography
Spectral Type: F2V 2006AJ....132..161G.
Radial Velocity: -2.14 ±0.27 km/s [A rating] 2010A&A...521A..12M, 2006AstL...32..759G.
Iron Abundance [Fe/H]:
-0.06 ±0.03 dex
2011A&A...525A..71W, 2009A&A...501..941H, 1990ApJ...354..310B.
Photometry
| band | magnitude | Abs. Mag. |
| U | ||
| B | 4.05 | 3.18 |
| V | 3.71 | 2.85 |
| R | ||
| I | 3.36 | 2.50 |
| J | 3.06 | 2.20 |
| H | 2.99 | 2.12 |
| K | 2.99 | 2.13 |
B-V: +0.34 V-I: +0.35
Derivations
Heliocentric distance: 14.88 pc (0.4% margin of error)
Galactocentric distance: 7,411 pc
Transverse velocity: 10.3 km/s
3D heliocentric position and motion:
|
toward: |
Galactic center | Galactic rotation | North Galactic Pole |
| Position ( X, Y, Z) | -10.8 pc | -9.0 pc | -4.7 pc |
| Velocity (U, V, W) | -5.3 km/s | 8.8 km/s | 1.9 km/s |