Question

Kepler found that the orbits of the planets were _____. circular amorphous oval elliptical

Answer 1

Kepler found that the orbits of the planets were elliptical. 
His work was so convincing that to this day, they still are.

Answer 2

Answer:

elliptical

Explanation:

Nicolaus Copernicus gave the heliocentric theory that sun is at the center if the solar system and all the planets and the moons revolved wound it. according to him, the planets revolved around the sun in circular paths.

But Kepler suggested a different shape of the orbit. According to the laws o planetary motion given by Kepler, the planets revolve around the sun in an elliptical orbit. The sun is at one of its focus.