83 Leonis Bb

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83 Leonis Bb
Exoplanet List of exoplanets
Parent star
Star 83 Leonis B
Constellation Leo
Right ascension (α) 11h 26m 45.32s
Declination (δ) +3° 0′ 47.18″
Distance 57.61 ly
(17.67 pc)
Spectral type K2V
Orbital elements
Semi-major axis (a) 0.12186 ± 0.00002[1] AU
Eccentricity (e) 0.13 ± 0.07[1]
Orbital period (P) 17.054 ± 0.003[1] d
Argument of
(ω) 196 ± 32[1]°
Time of periastron (T0) 2,450,449 ± 2[1] JD
Semi-amplitude (K) 7.9 ± 0.6[1] m/s
Physical characteristics
Minimum mass (m sin i) 0.087 ± 0.006[1] MJ
Discovery information
Discovery date 25 January 2005
Discoverer(s) Marcy,
Vogt et al.
Discovery method Doppler spectroscopy
Discovery site  United States
Discovery status Confirmed
Other designations
HD 99492 b
Database references
Extrasolar Planets
Exoplanet Archive data
Open Exoplanet Catalogue data

83 Leonis Bb, also catalogued as HD 99492 b or abbreviated 83 Leo Bb, is an extrasolar planet approximately 58 light-years away in the constellation of Leo (the Lion). The planet was discovered in January 2005 by the California and Carnegie Planet Search team, who use the Doppler spectroscopy method to detect planets.[2] It orbits in a close orbit around the star, completing one orbit in about 17 days.[1]


  1. ^ a b c d e f g h Stefano Meschiari; Gregory Laughlin; Steven S. Vogt; R. Paul Butler; Eugenio J. Rivera; Nader Haghighipour; Peter Jalowiczor (February 2011). "The Lick-Carnegie Survey: Four New Exoplanet Candidates". The Astrophysical Journal. 727 (2): 117. arXiv:1011.4068free to read. Bibcode:2011ApJ...727..117M. doi:10.1088/0004-637X/727/2/117. 
  2. ^ Marcy, Geoffrey W.; et al. (January 2005). "Five New Extrasolar Planets". The Astrophysical Journal. 619 (1): 570–584. Bibcode:2005ApJ...619..570M. doi:10.1086/426384. 

External links[edit]

Coordinates: Sky map 11h 26m 45.32s, +03° 00′ 47.18″