The most successful method to date in determining an exoplanet's radius is:
A) the transit method.
B) the radial velocity method.
C) direct imaging.
D) gravitational lensing.

Question

Quizplus · Accepted Answer

The transit method involves measuring the slight dimming of a star's light as an exoplanet passes in front of it. This allows astronomers to determine the size of the exoplanet relative to its host star. This method has been the most successful so far in determining exoplanet radii, as it has detected thousands of exoplanets and has provided a wealth of data for statistical analysis. The other methods listed have also been used to determine exoplanet radii, but they are less widely used and/or less successful overall.

The Most Successful Method to Date in Determining an Exoplanet's