Kepler-1658b

Kepler-1658b
Discovery
Discovered byAshley Chontos et al. (Kepler team)
Discovery dateFebruary 2019 (published 29 April 2019)
Transit (Kepler Mission)
Orbital characteristics[1]
0.0544 ± 0.0007 AU (8,140,000 ± 100,000 km)
Eccentricity0.063+0.020
−0.019
3.84937278±0.00000080 d
Inclination76.52°+0.58°
−0.59°
352.3°+1.9°
−3.4°
StarKepler-1658 (KOI-4)
Physical characteristics[1]
1.07 RJ
Mass5.88 MJ
Mean density
6.36 g/cm3
13.0 g
Albedo0.785

Kepler-1658b (or the Kepler object of interest, KOI-4.01) is a hot Jupiter, a type of gas giant exoplanet,[2] that orbits an F-type star called Kepler 1658, located about 2629 light-years away from the Solar System.[3] It is the first planet identified by the Kepler space telescope after its launch in 2009, but later ruled out as false alarm since its transit could not be confirmed. A study published in 2019 established it as a planet,[4] describing it as "the closest known planet in terms of orbital period to an evolved star."[5] Analysis of the Transiting Exoplanet Survey Satellite (TESS) data in 2022[6] showed that it is gradually spiraling into its star.[7]

  1. ^ a b "The Extrasolar Planet Encyclopaedia — Kepler-1658 b". Extrasolar Planets Encyclopaedia.
  2. ^ Hadhazy, Adam (2022-12-19). "Exoplanet spiraling toward its doom as it orbits aging star". Harvard Gazette. Retrieved 2022-12-20.
  3. ^ "Is this the way Earth is going to die? Death of Exoplanet shows how". Hindustan Times Tech. 2022-12-20. Retrieved 2022-12-20.
  4. ^ Strickland, Ashley (2019-03-06). "Kepler's first exoplanet has been confirmed, 10 years after discovery". CNN. Retrieved 2022-12-20.
  5. ^ Chontos, Ashley; Huber, Daniel; Latham, David W.; Bieryla, Allyson; Eylen, Vincent Van; Bedding, Timothy R.; Berger, Travis; Buchhave, Lars A.; Campante, Tiago L.; Chaplin, William J.; Colman, Isabel L.; Coughlin, Jeff L.; Davies, Guy; Hirano, Teruyuki; Howard, Andrew W. (2019). "The Curious Case of KOI 4: Confirming Kepler ' s First Exoplanet Detection". The Astronomical Journal. 157 (5): 192. arXiv:1903.01591. Bibcode:2019AJ....157..192C. doi:10.3847/1538-3881/ab0e8e. ISSN 1538-3881. S2CID 119240124.
  6. ^ Vissapragada, Shreyas; Chontos, Ashley; Greklek-McKeon, Michael; Knutson, Heather A.; Dai, Fei; González, Jorge Pérez; Grunblatt, Sam; Huber, Daniel; Saunders, Nicholas (2022). "The Possible Tidal Demise of Kepler's First Planetary System". The Astrophysical Journal Letters. 941 (2): L31. arXiv:2212.09752. Bibcode:2022ApJ...941L..31V. doi:10.3847/2041-8213/aca47e. ISSN 2041-8205. S2CID 254875671.
  7. ^ "Kepler's first exoplanet is spiraling toward its doom". Science Magazine. 2022-12-19. Retrieved 2022-12-20.