Which of the following exoplanets would be easiest to detect using the Doppler method?
A) a Jupiter-mass planet orbiting very far from its parent star
B) an Earth-mass planet orbiting very close to its parent star
C) a Jupiter-mass planet orbiting very close to its parent star
D) an Earth-mass planet orbiting very far from its parent star

Question

Quizplus · Accepted Answer

The Doppler method (or radial velocity method) is most sensitive to large planets that are close to their parent stars. A Jupiter-mass planet orbiting very close to its star would induce the largest velocity changes in the star, making it the easiest to detect with this method.

Which of the Following Exoplanets Would Be Easiest to Detect