Even before the invention of the telescope, ancient people have already observed different astronomical phenomena. The most observable objects in the sky are the sun and moon. Babylonian and Egyptian civilizations used a primitive version of a sundial, called gnomon, in systematically observing the motion of the sun.
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Answer:
Even before the invention of the telescope, ancient people have already observed different astronomical phenomena. The most observable objects in the sky are the sun and moon. Babylonian and Egyptian civilizations used a primitive version of a sundial, called gnomon, in systematically observing the motion of the sun.
Explanation: