Answer:
Aquarius beginning in the mid-3rd millennium. The north and south celestial poles are the two imaginary points in the sky where the Earth's ... In about 5,500 years, the pole will have moved near the position of the star ... The south celestial pole is visible only from the Southern Hemisphere.
Explanation:
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HISNDHENSKSNS
This allows us to visually see the structure of the atoms/ molecules so we can get a better understanding of what they look like.