An astronomer is trying to detect an exoplanet via the transit method. Which of these changes to a particular planet will make it EASIER to detect, if everything else about the planet is unchanged?
A) increasing its radius
B) increasing its mass
C) increasing its orbital period
D) All of these are correct.

Question

Quizplus · Accepted Answer

Increasing the radius of an exoplanet makes it easier to detect via the transit method because a larger planet blocks more of its star's light when it passes in front of the star, creating a more noticeable dip in the star's brightness.

An Astronomer Is Trying to Detect an Exoplanet Via the Transit