Question

An exoplanet is observed to transit a star of radius 2.2 solar radii. Using the schematic below, what is the radius of the exoplanet? Answer in units of solar radii to two decimal places.

a) 1.34 solar radii
b) 3.17 solar radii
c) 2.58 solar radii
d) 0.92 solar radii

Answer 1

The question lacks essential information to calculate the radius of the exoplanet. Normally, the transit depth is required to compute the exoplanet's radius from the star's radius, but this data is not provided in the question.

Step-by-step explanation:

To determine the radius of the exoplanet, we would typically use the transit depth which is given by the square of the ratio of the radius of the planet to the radius of the star. However, the information provided in the question seems to be incomplete because it does not provide the transit depth nor any additional context required to calculate the planet's radius given only the star's radius. In such cases where the transit depth or the necessary information to calculate it is not provided, it's not possible to accurately answer the question without further information on the actual transit observation data.