83 Leonis Bb

83 Leonis Bb
Hypothetical view of 83 Leonis Bb rendered by Celestia
Discovery
Discovered byMarcy,
Butler,
Vogt et al.
Discovery siteUnited States
Discovery date25 January 2005
Doppler spectroscopy
Orbital characteristics
0.12186 ± 0.00002 AU (18,230,000 ± 3,000 km)[1]
Eccentricity0.13 ± 0.07[1]
17.054 ± 0.003[1] d
2,450,449 ± 2[1]
196 ± 32[1]
Semi-amplitude7.9 ± 0.6[1]
Star83 Leonis B

83 Leonis Bb, also catalogued as HD 99492 b or abbreviated 83 Leo Bb, is an extrasolar planet with a minimum mass of 1.5 Neptune mass. It is located approximately 59 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] The HARPS-N spectrograph discovered a second Neptune-like exoplanet in 2022 orbiting at 95 days.

See also

References

  1. ^ a b c d e f g Meschiari, Stefano; et al. (2011). "The Lick-Carnegie Survey: Four New Exoplanet Candidates". The Astrophysical Journal. 727 (2). 117. arXiv:1011.4068. Bibcode:2011ApJ...727..117M. doi:10.1088/0004-637X/727/2/117. S2CID 59065004.
  2. ^ Marcy, Geoffrey W.; et al. (2005). "Five New Extrasolar Planets". The Astrophysical Journal. 619 (1): 570–584. Bibcode:2005ApJ...619..570M. doi:10.1086/426384. S2CID 5803173.


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