Star Trails of the North and South

20:00 12/2/2020 - Πηγή: NewsNow
Explanation: What divides the north from the south. It all has to do with the spin of the Earth. On Earth's surface, the equator is the dividing line, but on Earth's sky, the dividing line is the Celestial Equator -- the equator's projection onto the sky.
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