KnowraKepler's first lawLinked fromLinked fromThe 3 pages that link to Kepler's first law, each with the reason it gives.All 3Broader topic 1Related 2Kepler's third lawRelated: It specifies orbital shape, while the third law relates orbital size to period.Kepler's second lawRelated: Together, the elliptical path and equal-area rule specify the shape and timing of planetary motion.