K2-138
作者: Karistus SolHorizon
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K2-138 is a K-type main sequence star located about 660.44 lightyears from the solar system. the star hosts a series of planets: one super-Earth (b= 1.49 Re, 3.10 Me) and five mini-Neptunes (c= 2.299 Re, 6.31 Me | d= 2.39 Re, 7.92 Me | e= 3.39 Re, 12.97 Me | f= 2.904 Re, 1.63 Me | g= 3.013 Re, 4.32 Me). all of the five inner planets of the system are either in or near a 3:2 resonance with the planet in front of them. K2-138 g breaks this pattern by being further out than its companions
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