Kepler-20b

Mini-Neptune orbiting Kepler-20

Kepler-20b is an exoplanet orbiting Kepler-20 in a system 922 light years from Earth.[2] It is classified as a Super-Earth, as it has a radius and mass greater than that of Earth. At about 1.87 R🜨, it would most likely be a Mini-Neptune, but its high mass of 9.7 ME implies that it is an iron-rich rocky world. Along with the other four planets in the system, Kepler-20b was announced on 20 December 2011.

References

  1. ^ Buchhave, Lars A.; Dressing, Courtney D.; Dumusque, Xavier; Rice, Ken; Vanderburg, Andrew; Mortier, Annelies; Lopez-Morales, Mercedes; Lopez, Eric; Lundkvist, Mia S.; Kjeldsen, Hans; Affer, Laura; Bonomo, Aldo S.; Charbonneau, David; Cameron, Andrew Collier; Cosentino, Rosario; Figueira, Pedro; Fiorenzano, Aldo F. M.; Harutyunyan, Avet; Haywood, RaphaĂ«lle D.; Johnson, John Asher; Latham, David W.; Lovis, Christophe; Malavolta, Luca; Mayor, Michel; Micela, Giusi; Molinari, Emilio; Motalebi, Fatemeh; Nascimbeni, Valerio; Pepe, Francesco; et al. (2016). "A 1.9 Earth Radius Rocky Planet and the Discovery of a Non-Transiting Planet in the Kepler-20 System". The Astronomical Journal. 152 (6): 160. arXiv:1608.06836. Bibcode:2016AJ....152..160B. doi:10.3847/0004-6256/152/6/160. S2CID 216077870.
  2. ^ "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2021-10-05.
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The Kepler-20 system
Stars
  • Kepler-20
Planets
  • Kepler-20b
  • Kepler-20c
  • Kepler-20d
  • Kepler-20e
  • Kepler-20f
  • Kepler-20g


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