SOLAR SYSTEM

Detailed explanation-1: -In Astronomie Nova (1609), Kepler presented extensive research on the orbit of Mars. Using Tycho Brahe’s observational data, Kepler was able to fine tune the movements of the planets and demonstrate that the movement of Mars could be described as an ellipse.

Detailed explanation-2: -This discovery (which became Kepler’s second law of orbital motion) led to the realization of what became Kepler’s first law: that the planets move in an ellipse (a squashed circle) with the Sun at one focus point, offset from the center.

Detailed explanation-3: -You might think that the Earth orbits the Sun in a perfect circle. But actually it’s more like an oval. We call the shape of the Earth’s orbit, elliptical.

Detailed explanation-4: -Considered a pioneer in astronomy, Johannes Kepler is best known for his three laws of planetary motion. The first and most famous law states that planets orbit in ellipses, not in circles, as was the common belief at the time.