Astronomy:Kepler-451b

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Short description: Circumbinary exoplanet orbiting the star 2MASS J19383260+4603591
Kepler-451b
Discovery
Discovery siteKepler Space Observatory
Discovery date2015
Eclipse Timing Variations
Orbital characteristics
0.92 ± 0.02 AU (137,600,000 ± 3,000,000 km)[1]
Eccentricitynull
Orbital period416±2 d[1]
Star2MASS J19383260+4603591 A/B
Physical characteristics
Mass604±32[1] M


Kepler-451b, also known as 2MASS J19383260+4603591 b, is a circumbinary exoplanet orbiting the two stars 2MASS J19383260+4603591. It has a mass of 604±32 Earth Masses or 1.9±0.1 Jupiter Masses. It was discovered using Eclipse Timing Variations by the Kepler space telescope in 2015.[2]

The existence of the planet was disputed in 2020 though,[3] but in 2022 a confirmation was announced.[4]

References

  1. 1.0 1.1 1.2 "2MASS J19383260+4603591 b/Kepler-451 b CONFIRMED PLANET OVERVIEW PAGE". NASA Exoplanet Archive. http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-451+b&type=CONFIRMED_PLANET. Retrieved 2015-10-08. 
  2. Detection of a planet in the sdB + M dwarf binary system 2M 1938+4603
  3. Krzesinski, J.; Blokesz, A.; Siwak, M.; Stachowski, G. (2020), "The quest for planets around subdwarfs and white dwarfs from Keplerspace telescope fields", Astronomy & Astrophysics 642: A105, doi:10.1051/0004-6361/202038121 
  4. Esmer, Ekrem Murat; Baştürk, Özgür; Selam, Selim Osman; Aliş, Sinan (2022), "Detection of two additional circumbinary planets around Kepler-451", Monthly Notices of the Royal Astronomical Society 511 (4): 5207–5216, doi:10.1093/mnras/stac357