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

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.

Kepler noticed that the planets move around the Sun in elliptical orbits rather than in perfect circles, which led him to propose Kepler's first law of orbital motion.

Kepler noticed that the planets do not move in perfect circles but instead follow elliptical paths around the Sun. This observation led him to propose Kepler’s first law of orbital motion. To obtain this answer one can either:

1. Recall the information if they have previously studied it or know it.
2. Research the contributions and discoveries made by Johannes Kepler, specifically his observations of planetary motion. This can be done by referring to textbooks, reliable online sources, or scientific literature.