How can asteroids be distinguished from stars in telescope observations?
A) Asteroids move relative to the stars.
B) Asteroids are much dimmer than stars.
C) Asteroids are much redder than stars.
D) Asteroids are much brighter than stars.
E) Asteroids are not spherical.
A) Asteroids move relative to the stars.
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Fill in the blank(s) with the appropriate word(s).
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