Which did Kepler notice about planetary motion that caused him to propose Kepler’s first law of orbital motion?(1 point)

3 answers

Kepler noticed that planetary orbits were not circular but instead elliptical in shape.
Which did Kepler notice about planetary motion that caused him to propose Kepler’s first law of orbital motion?(1 point)
Responses

Most planets have highly elliptical orbits.
Most planets have highly elliptical orbits.

The distance to the sun varies.
The distance to the sun varies.

The planets have circular orbits.
The planets have circular orbits.

The distance between Mars and the sun is constant.
The distance to the sun varies.