11. Is Earth tilted? Is there really an axis or is this an imaginary thing? (A K2S Question)
From The Space Library
If you pointed a camera at the Pole Star, on time exposure, you would see all the other stars make a circular motion around it. So, the Earth always spins in the same direction once a day, around an imaginary axis which lines up with the Pole Star. The tilted axis (23 degrees) gives us summers in one-half of the globe and winters at the same time in the other half. At Christmas-time in Australia you can go surfing at the beach!
Answer provided by Derek Webber
Question and Answer extracted from the book Kids to Space - by Lonnie Schorer
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