Eta Leporis

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Star
Eta Leporis
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation Hare
Right ascension 05 h 56 m 24.29 s
declination -14 ° 10 ′ 3.7 ″
Apparent brightness 3.72 likes
Typing
B − V color index +0.33 
U − B color index +0.01 
R − I index +0.16 
Spectral class F2 V
Astrometry
Radial velocity −2.4 ± 0.9 km / s
parallax 66.47 ± 0.74  mas
distance 49.1 ± 0.5  ly
15.0 ± 0.2  pc
Visual absolute brightness M vis 2.83 mag
Proper movement 
Rec. Share: −42.23  mas / a
Dec. portion: 139.02  mas / a
Physical Properties
Dimensions 1.42 (1.38 to 1.47)  M ☉
radius 1.5  R ☉
Effective temperature 6,900  K
Metallicity [Fe / H] −0.25
Age 1.8 (1.5 to 1.9) billion  a
Other names
and catalog entries
Bayer name η Leporis
Flamsteed name 16 Leporis
Bonn survey BD -14 ° 1286
Bright Star Catalog HR 2085 [1]
Henry Draper Catalog HD 40136 [2]
Gliese catalog FY 225 [3]
Hipparcos catalog HIP 28103 [4]
SAO catalog SAO 150957 [5]
Tycho catalog TYC 5360-1370-1 [6]Template: Infobox star / maintenance / specification of the TYC catalog
2MASS catalog 2MASS J05562429-1410036 [7]
Other names FK5 226, GC 7492, PPM 216474

Eta Leporis ( η Leporis , short η Lep , also 16 Leporis and Gliese 225 ) is a main sequence star of the spectral class F in the constellation Rabbit . At a distance of approximately 49 light years, it still belongs to the stellar neighborhood of the sun . With an apparent magnitude of 3.72 mag, Eta Leporis can be seen with the naked eye a little southwest of the bright star Saiph in the constellation Orion or west of Arneb ( Alpha Leporis ).

An infrared excess around Eta Leporis was observed with the Spitzer Space Telescope , which is attributed to a disk of debris that extends 1 to 16 AU from the star.

Individual evidence

  1. ↑ a b c d e f SIMBAD: eta Lep. Retrieved July 5, 2015 .
  2. ↑ a b c VizieR: HR 2085. Accessed July 5, 2015 .
  3. ↑ a b c d e VizieR: HD 40136. Accessed July 5, 2015 .
  4. ^ Lawler, SM et al .: Explorations Beyond the Snow Line: Spitzer / IRS Spectra of Debris Disks Around Solar-type Stars. Retrieved July 5, 2015 .