Kappa Leporis

Kappa Leporis
Observation data
Epoch J2000      Equinox J2000
Constellation Lepus
Right ascension 05h 13m 13.87761s [1]
Declination −12° 56′ 28.6463″ [1]
Apparent magnitude (V) 4.42 [2]
Characteristics
Spectral type B7V [3]
U−B color index -0.41 [2]
B−V color index -0.09 [2]
Astrometry
Radial velocity (Rv)+20.80[4] km/s
Proper motion (μ) RA: -12.29[1] mas/yr
Dec.: -0.79[1] mas/yr
Parallax (π)4.48 ± 0.58[1] mas
Distanceapprox. 730 ly
(approx. 220 pc)
Absolute magnitude (MV)-2.32 [5]
Other designations
4 Leporis, HIP 24327, HR 1705, HD 33949, GC 6387, CCDM J05132-1256AB, SAO 150239 [2]
Database references
SIMBADdata

Kappa Leporis (κ Lep) is a class B7V[3] (blue main-sequence) star in the constellation Lepus. Its apparent magnitude is 4.42[2] and it is approximately 730 light years away based on parallax.[1]

The star has one recorded companion, B, with an apparent magnitude of 7.4 and separation 2.6".[6]


References

  1. 1 2 3 4 5 6 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. Bibcode:2007A&A...474..653V. arXiv:0708.1752 Freely accessible. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. 1 2 3 4 5 "Kappa Leporis". SIMBAD Astronomical Database. Retrieved 2015-10-03.
  3. 1 2 Houk, N. (1988), Michigan catalogue of two-dimensional spectral types for the HD stars, 4, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1988MSS...C04....0H
  4. ↑ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
  5. ↑ Absolute magnitude calculated as , where is the star's absolute magnitude, is the star's apparent magnitude, and is the star's measured parallax in arcseconds.
  6. ↑ Dommanget, J.; et al. (2002), "Catalog of Components of Double & Multiple stars", Observations et Travaux, 54 (5), Bibcode:2002yCat.1274....0D Vizier result
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