Kepler found that all planets move in elliptical orbits, with the sun being at one focus. Kepler also announced that the speed an object traveled along it's path varied according to how close the object was to the sun. He also announced that the larger a planet's orbit, the slower it travels.
Kepler discovered that the planets orbit the Sun in elliptical shapes, not in perfect circles as previously believed. This finding is summarized in Kepler's first law of planetary motion.
Johannes Kepler discovered that planets orbit the Sun in ellipses with varying eccentricities in the early 17th century. This became known as Kepler's first law of planetary motion and revolutionized our understanding of planetary orbits.
Johannes Kepler
Yes, Johannes Kepler discovered that planets orbit around the sun in elliptical paths, rather than in perfect circles as previously believed. This discovery was based on his study of the motion of planets, particularly Mars, and his formulation of the laws of planetary motion known as Kepler's Laws.
Kepler described the orbits of planets around the Sun as an ellipse with the Sun at one of the two foci.
Johannes Kepler is credited with that discovery.
Kepler
Ellipses
Kepler discovered that the planets orbit the Sun in elliptical shapes, not in perfect circles as previously believed. This finding is summarized in Kepler's first law of planetary motion.
it was Kepler
Why the planets stayed int their orbit.
Johannes Kepler did that first.
Johannes Kepler discovered that planets orbit the Sun in ellipses with varying eccentricities in the early 17th century. This became known as Kepler's first law of planetary motion and revolutionized our understanding of planetary orbits.
Kepler discovered the orbits of the solar system are elliptical.
Kelper determined that the orbit of Mars orbit is not a circle but an ellipse.
kepler
No. Kepler proposed that some force kept the planets in orbit, but did not know or say what that force was. It was Isaac Newton who figured out that this force is gravity.