What is the structure of a typical large sunspot?
A) An irregular dark area of uniform darkness
B) A dark center surrounded by a less dark area
C) A roughly circular,dark region with a lighter central area
D) Usually round and of uniform darkness

Question

Quizplus · Accepted Answer

Sunspots typically have a dark center known as the umbra, which is surrounded by a less dark, filamentary area called the penumbra.

What Is the Structure of a Typical Large Sunspot