Kappa Leporis

Kappa Leporis

Observation data Epoch J2000      Equinox J2000
Constellation	Lepus
Right ascension	05^h 13^m 13.87761^s [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
Distance	approx. 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
SIMBAD	data

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. van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
2. "Kappa Leporis". SIMBAD Astronomical Database. Retrieved 2015-10-03.
3. 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 $M = m + 5 (1 + \log_{10}{p})\!\,$, where $M$ is the star's absolute magnitude, $m$ is the star's apparent magnitude, and $p$ 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