If every star had an Earth-like planet in an Earth-like orbit,how many could be detected by a transit?
A)1 in 2
B)1 in 20
C)1 in 200
D)1 in 2,000
E)1 in 20,000

Question

Quizplus · Accepted Answer

The probability of a planet aligning with its star and the observer in a way that results in a transit is approximately 1 in 200, assuming random orientation of planetary orbits. This means that for every 200 Earth-like planets in Earth-like orbits, only one would be detected through transit observations.

If Every Star Had an Earth-Like Planet in an Earth-Like