TOI-157

TOI-157 (also known as TIC 140691463) is a G-type sub giant star[1] located about 1180 light years (362.1 pc) from Earth. It has a mass of 0.948 solar masses, a radius of 1.167 solar radii and a temperature of 5404 Kelvin. It is currently 12.82 billion years old.[2][3]

It has one discovered exoplanet orbiting it named TOI-157b. It is a gas giant classed as a hot Jupiter with a mass of 1.18 Jupiter masses and a radius of 1.286 Jupiter radii. It orbits very close to the star taking only 2 days to complete a orbit. This places the temperature of TOI-157b to be around 1588 Kelvin.[2] It is a typical hot Jupiter.[1]

References

  1. ^ a b Nielsen, L. D.; Brahm, R.; Bouchy, F.; Espinoza, N.; Turner, O.; Rappaport, S.; Pearce, L.; Ricker, G.; Vanderspek, R. (2020-07-15), "Three short-period Jupiters from TESS", Astronomy & Astrophysics, 639: A76, arXiv:2003.05932, doi:10.1051/0004-6361/202037941
  2. ^ a b Martin, Pierre-Yves (2022). "Planet TOI-157 b". exoplanet.eu. Retrieved 2025-06-15.
  3. ^ "TOI-157 | NASA Exoplanet Archive". exoplanetarchive.ipac.caltech.edu. Retrieved 2025-06-15.
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