What prevented Ole Rømer from calculating an accurate value for the speed of light from his measurements of the delays in eclipse times of Jupiter's moons?
A) The dimensions of the solar system, particularly the length of 1 AU, were known only very inaccurately.
B) Telescopes were not good enough at that time to show Jupiter's moons clearly, and accurate timings were not therefore possible.
C) The distance between Earth's orbit and Jupiter's orbit was unknown.
D) The clocks available at that time were not sufficiently accurate.

Question

Quizplus · Accepted Answer

The dimensions of the solar system, particularly the length of 1 AU, were known only very inaccurately during Ole Rømer's time. This inaccuracy made it difficult for him to calculate an accurate value for the speed of light.

What Prevented Ole Rømer from Calculating an Accurate Value for the Speed