Question
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 planets have circular orbits.
The planets have circular orbits.
The distance to the sun varies.
The distance to the sun varies.
The distance between Mars and the sun is constant.
Responses
Most planets have highly elliptical orbits.
Most planets have highly elliptical orbits.
The planets have circular orbits.
The planets have circular orbits.
The distance to the sun varies.
The distance to the sun varies.
The distance between Mars and the sun is constant.
Answers
GPT-4o mini
Kepler noticed that **the distance to the sun varies** as planets move in their orbits, which led him to propose Kepler's first law of orbital motion stating that planets move in elliptical orbits with the sun at one of the foci.