Much easier to explain on a ball, if the sun is 93,000,000 miles away, if it’s a much closer sun, as it appears to me, a plane explains just fine.
Why doesn’t the North Star ever move if we are moving 67,000mph around a giant fireball moving 483,000mph, in a galaxy moving 1,300,000 mph. Seems highly improbable
Danged ol math 😊
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Turns out, rotating spherical geometry is a great part of math! Dang reality is the problem
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The Polar Star does move indeed.
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How much, & any good Proof?
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You know, the absolute speed of movement is irrelevant. With greater speed, the greater orbital radius and also the greater orbital period. The sun takes 250 million years to travel around the galaxy. If the polar star would be standing still while we were moving, it would take some 700k years for the star to move a single degree on the sky. Since the polar star is moving at roughly the same speed and in roughly the same direction, it takes a lot more. Hence of course it's impossible for a mere mortal like me to observe this movement. Perhaps the scientists can measure it, I don't know, I'm not an astronomer.
However, due to the precession of the earths rotational axis, the polar star does move around with a period of 22000 years. The current polar star has not always been used as the north reference for navigators. Of course this is also outside the scope of what I can directly observe, though Wikipedia covers it pretty well.
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This is a good answer, but I’m curious to look up the history of the recorded distance estimates.
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