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Post by pathfinder on Sept 26, 2022 2:39:28 GMT
As the Earth goes through the seasons from the summer solstice to the winter solstice how far does the North Pole travel from closest to the sun to the furthest from the sun for there to be a temperature difference of 100 degrees?
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Post by Flying Monkeys on Sept 26, 2022 10:13:53 GMT
It's not the distance, it's the angle that the Earth is at, i.e. in winter the pole is leaning away from the sun so it gets a lot less daylight time and when it does get the sun, it's very low in the sky so the concentration of the light is also very low.
To answer your question, however, the radius of Earth is 6357km at the poles and it looks like it tilts by about 20 degree so probably moves 1,500km from vertical each side, so maybe 3,000km total movement (2,000 miles).
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Post by pathfinder on Sept 27, 2022 23:12:39 GMT
It's not the distance, it's the angle that the Earth is at, i.e. in winter the pole is leaning away from the sun so it gets a lot less daylight time and when it does get the sun, it's very low in the sky so the concentration of the light is also very low. To answer your question, however, the radius of Earth is 6357km at the poles and it looks like it tilts by about 20 degree so probably moves 1,500km from vertical each side, so maybe 3,000km total movement (2,000 miles). Thanks. 2000 miles out of 93-millions miles make a 100 degrees difference. It makes me wonder if there is a plus/minus in that 93-million miles distance rotation giving us a Global Ice age period and a Global Warming age period as the Earth rotates around the sun. Does this distance vary in thousands of years? |
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Post by Flying Monkeys on Sept 28, 2022 7:38:27 GMT
It's not the distance, it's the angle that the Earth is at, i.e. in winter the pole is leaning away from the sun so it gets a lot less daylight time and when it does get the sun, it's very low in the sky so the concentration of the light is also very low. To answer your question, however, the radius of Earth is 6357km at the poles and it looks like it tilts by about 20 degree so probably moves 1,500km from vertical each side, so maybe 3,000km total movement (2,000 miles). Thanks. 2000 miles out of 93-millions miles make a 100 degrees difference. It makes me wonder if there is a plus/minus in that 93-million miles distance rotation giving us a Global Ice age period and a Global Warming age period as the Earth rotates around the sun. Does this distance vary in thousands of years? I don't think so - just varies once a year:  en.wikipedia.org/wiki/Earth%27s_orbit |
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