The solar constant is a measure of
A) the amount of solar energy reaching Earth.
B) the length of the sunspot cycle.
C) the period of rotation of the sun's equator.
D) the average number of sunspots seen during the Maunder minimum.
E) the sun's mass.

Question

Quizplus · Accepted Answer

The solar constant is defined as the amount of solar energy that reaches the Earth's atmosphere per unit area, averaged over the entire planet and over the entire year. It is measured to be approximately 1361 Watts per square meter.

The Solar Constant Is a Measure of