Astronomers measure stellar distances in three different units. The smallest of these is
A) the light-year.
B) the absolute magnitude.
C) the astronomical unit.
D) the parsec.

Question

Quizplus · Accepted Answer

The astronomical unit (AU) is the smallest unit among the options given for measuring stellar distances. It is defined as the average distance between the Earth and the Sun, approximately 93 million miles or 150 million kilometers.

Astronomers Measure Stellar Distances in Three Different Units