Kappa Leporis
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Lepus |
Right ascension | 05h 13m 13.87761s[1] |
Declination | −12° 56′ 28.6463″[1] |
Apparent magnitude (V) | 4.43 + 7.00[2] |
Characteristics | |
Spectral type | B9 V[3] |
U−B color index | −0.34[4] |
B−V color index | −0.10[4] |
Astrometry | |
Radial velocity (Rv) | +20.8±1.0[5] km/s |
Proper motion ( | RA: −12.29[1] mas/yr Dec.: −0.79[1] mas/yr |
Parallax ( | 4.48 ± 0.58 mas[1] |
Distance | approx. 730 ly (approx. 220 pc) |
Absolute magnitude (MV) | −2.34[6] |
Details[3] | |
Mass | 4.86±0.39 M☉ |
Radius | 2.6[7] R☉ |
Luminosity | 1,346 L☉ |
Surface gravity (log g) | 3.44[8] cgs |
Temperature | 11,588 K |
Metallicity [Fe/H] | −0.07[8] dex |
Rotational velocity (v sin i) | 135 km/s |
Other designations | |
Database references | |
SIMBAD | data |
Kappa Leporis, Latinized from
The brighter, blue-white hued member of the system, component A, is a B-type main-sequence star with a stellar classification of B9 V.[3] It has nearly five[3] times the mass of the Sun and around 2.6[7] times the Sun's radius. The star is radiating 1,346 times the Sun's luminosity from its photosphere at an effective temperature of 11,588 K.[3] It displays an infrared excess at a wavelength of 12
References
[edit]- ^ a b c d e f 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, S2CID 18759600.
- ^ Fabricius, C.; Makarov, V. V. (April 2000), "Two-colour photometry for 9473 components of close Hipparcos double and multiple stars", Astronomy and Astrophysics, 356: 141–145, Bibcode:2000A&A...356..141F.
- ^ a b c d e Zorec, J.; Royer, F. (January 2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics, 537: A120, arXiv:1201.2052, Bibcode:2012A&A...537A.120Z, doi:10.1051/0004-6361/201117691, S2CID 55586789.
- ^ a b Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99): 99, Bibcode:1966CoLPL...4...99J.
- ^ a b de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: 14, arXiv:1208.3048, Bibcode:2012A&A...546A..61D, doi:10.1051/0004-6361/201219219, S2CID 59451347, A61.
- ^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
- ^ a b Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics, 367 (Third ed.): 521–24, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754.
- ^ a b Saffe, C.; Gómez, M.; Pintado, O.; González, E. (October 2008), "Spectroscopic metallicities of Vega-like stars", Astronomy and Astrophysics, 490 (1): 297–305, arXiv:0805.3936, Bibcode:2008A&A...490..297S, doi:10.1051/0004-6361:200810260, S2CID 15059920.
- ^ "kap Lep". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-08-18.
{{cite web}}
: CS1 maint: postscript (link) - ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
- ^ Mannings, Vincent; et al. (1998), "Candidate Main-Sequence Stars with Debris Disks: A New Sample of Vega-like Sources", The Astrophysical Journal, 497 (1): 330–341, Bibcode:1998ApJ...497..330M, CiteSeerX 10.1.1.502.7594, doi:10.1086/305432, S2CID 122421281.