Choose the best description of the radial velocity method of locating exoplanets. The orbiting planet causes the star to wobble causing it to appear bluer or more red depending on which direction it moves.

This method is works well for detecting planets orbiting in close proximity to a star, so the planet can more readily observed passing in front of the star.

Planets are timed as they orbit distant stars. The size of the planet can be judged by time duration it takes to transit a star.