Astronomy:Kepler-1658
Kepler-1658 is an F-type star located in the constellation Cygnus,[1] approximately 2,629 light-years (806 parsecs) away.[2]. It has 1.45 times the solar mass and 2.89 times the solar radius.[2] According to a study in 2025, it might have two stellar companions.[3]
Search for planets
In 2009, a hot Jupiter planet candidate (KOI-4.01) was identified around Kepler-1658 by the Kepler space telescope via the transit method. Initially ruled out as a false alarm, the existence of the planet was established in 2019 (Kepler-1658b).[4][5] Analysis of the Transiting Exoplanet Survey Satellite (TESS) data in 2022 showed that it is gradually spiraling into its star, with its orbit decaying.[6] However, based on the relevant data, in 2025 it was demonstrated that Kepler-1658b is very likely a false positive system.[3] In reality, all the data that supported the detection of a planet with physical orbital decay could just as well be explained via the assertion of the system as a triple star system, where the primary observed star has a companion system that consists of an eclipsing binary with a period of 3.8 days. This explanation can thoroughly account for all the system discrepancies when asserting a planet while providing a consistent explanation for all historical data.
References
- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific 99 (617): 695. doi:10.1086/132034. Bibcode: 1987PASP...99..695R Constellation record for this object at VizieR.
- ↑ 2.0 2.1 "Star Kepler-1658". https://www.stellarcatalog.com/stars/kepler-1658.
- ↑ 3.0 3.1 https://arxiv.org/abs/2510.05229
- ↑ Strickland, Ashley (2019-03-06). "Kepler's first exoplanet has been confirmed, 10 years after discovery" (in en). https://www.cnn.com/2019/03/06/world/kepler-first-exoplanet-confirmed-scn/index.html.
- ↑ Chontos, Ashley; Huber, Daniel; Latham, David W.; Bieryla, Allyson; Eylen, Vincent Van; Bedding, Timothy R.; Berger, Travis; Buchhave, Lars A. et al. (2019). "The Curious Case of KOI 4: Confirming Kepler ' s First Exoplanet Detection". The Astronomical Journal 157 (5): 192. doi:10.3847/1538-3881/ab0e8e. ISSN 1538-3881. Bibcode: 2019AJ....157..192C.
- ↑ Vissapragada, Shreyas; Chontos, Ashley; Greklek-McKeon, Michael; Knutson, Heather A.; Dai, Fei; González, Jorge Pérez; Grunblatt, Sam; Huber, Daniel et al. (2022). "The Possible Tidal Demise of Kepler's First Planetary System". The Astrophysical Journal Letters 941 (2): L31. doi:10.3847/2041-8213/aca47e. ISSN 2041-8205. Bibcode: 2022ApJ...941L..31V.
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