Weegy: A basic observation of a star is how bright it appears. This brightness is known as the star's apparent magnitude.
User: 16. An explosion that destroys the outer portion of a star is known as a
A. supergiant.
B. protostar.
C. supernova.
D. nebula.
Weegy: An explosion that destroys the outer portion of a star is known as supernova.
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