Iota Leporis

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Iota Leporis
Observation data
Epoch J2000      Equinox J2000
Constellation Lepus
Right ascension 05h 12m 17.90190s [1]
Declination −11° 52′ 09.1863″ [1]
Apparent magnitude (V) 4.45 [2]
Characteristics
Spectral type B7.5Vn [3]
U−B color index -0.40 [2]
B−V color index -0.10 [2]
Astrometry
Radial velocity (Rv) +23.50[4] km/s
Proper motion (μ) RA: +24.39[1] mas/yr
Dec.: -31.02[1] mas/yr
Parallax (π) 14.07 ± 0.16[1] mas
Distance 232 ± 3 ly
(71.1 ± 0.8 pc)
Absolute magnitude (MV) 0.19 [5]
Other designations
3 Leporis, SAO 150223, CCDM J05123-1152A, HIP 24244, HR 1696, GC 6374, HD 33802 [6]
Database references
SIMBAD data

Iota Leporis (ι Lep) is a class B7.5V[3] (blue main-sequence) star in the constellation Lepus. Its apparent magnitude is 4.45[2] and it is approximately 232 light years away based on parallax.[1]

The star has one companion, AM Leporis, a BY Draconis variable[7] of apparent magnitude 9.92,[2] and type G8Ve[8] at a separation of 12.7"[9] (about 900 AU at the given parallax).

References[edit]

  1. ^ 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.  Vizier catalog entry
  2. ^ a b c d e Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues 2237: 0. Bibcode:2002yCat.2237....0D. 
  3. ^ a b Garrison, R. F.; et al. (1994), "The late B-type stars: refined MK classification, confrontation with Stromgren photometry, and the effects of rotation", The Astronomical Journal 107 (4): 1556–1564, Bibcode:1994AJ....107.1556G, doi:10.1086/116967 
  4. ^ Kharchenko, N. V.; et al. (2007), "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ˜55000 stars and mean radial velocities of 516 Galactic open clusters and associations", Astronomische Nachrichten 328 (9): 889, arXiv:0705.0878, Bibcode:2007AN....328..889K, doi:10.1002/asna.200710776 
  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. ^ "Iota Leporis". SIMBAD Astronomical Database. Retrieved 2015-10-03. 
  7. ^ Kazarovets, E. V.; et al. (2008), "The 79th name-list of variable stars", Information Bulletin on Variable Stars 5863 (1), Bibcode:2008IBVS.5863....1K 
  8. ^ Gahm, G. F.; et al. (1983), "A study of visual double stars with early type primaries. I - Spectroscopic results", Astronomy and Astrophysics Supplement Series 51: 143–159, Bibcode:1983A&AS...51..143G 
  9. ^ Dommanget, J.; et al. (2002), "Catalog of Components of Double & Multiple stars", Observations et Travaux 54 (5), Bibcode:2002yCat.1274....0D  Vizier result