Astronomy Quiz
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GRAVITY, MOTION & LIGHT
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Two exoplanets, Kepler-186f and Kepler-452b, are discovered orbiting different Sun-like stars. Kepler-186f has an orbital period of 130 days and a semi-major axis of 0.4 AU. Kepler-452b orbits a star that is 20% more massive than the star Kepler-186f orbits. If Kepler-452b also has a semi-major axis of 0.4 AU, what is its approximate orbital period?
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