When Kepler‘s first law of motion, describe the shape of the planets, orbits as elliptical, which shape was he describing? Parabola, a spiral, a circle, an oval.

Answer 1

Kepler's first law of motion describes the orbits of the planets as elliptical. So, the correct shape he was describing is an "oval," specifically in the context of the elliptical shape that has two foci, one of which is occupied by the Sun in the case of planetary orbits.