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Abstract We investigate whether the orbital periods of exoplanets discovered by the Kepler and TESS missions adhere to Kepler’s Third Law, akin to the planets in our solar system. Using data obtained from the NASA Exoplanet Archive (DOI: 10.26133/NEA12 ) on 2024 June 24, we analyzed 2659 Kepler observations and 415 TESS observations. Our results demonstrate that the exoplanets observed by both Kepler and TESS missions follow Kepler’s law, with deviations that are within the expected range of observational uncertainties. This confirms that Kepler’s Third Law holds true for exoplanets beyond our solar system.
Jiang et al. (Fri,) studied this question.