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question 36
1 pts
what kind of motion does a star have when it appears to be moving across the sky and night progresses?
actual motion
apparent motion
geocentric motion
gibbous motion
Apparent motion refers to the motion of an object as it appears to an observer. In the case of stars moving across the sky as the night progresses, this is due to the Earth's rotation. The stars' actual motion (their movement through space) is much more complex and not what is observed on a nightly basis. Geocentric motion is an outdated model of the universe. Gibbous is a term related to the shape of the Moon, not motion.
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apparent motion