User:NorwegianBlue/kladd
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[edit] This a page that I use for testing before posting an entry
There are no secrets here :-), but there may be nonsense, things in the middle of a cut-and-paste process, stuff that does not parse correctly, or a half-finished entry which I am preparing in response to something you wrote. In case of the latter, you are of course welcome to read it, but save your comments till the time when my entry is actually posted.
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[edit] Test
Thanks for your responses! Bowlhover, I think the maximum solar height at the poles is 23°, not 90°-23°, and Dirk, to me it is inconceivable that the axis would eventually point towards the sun all year. Rotating the planet's axis once a year would require an enormous amount of energy. I'll think a bit more about the geometry of my hypothetical planet, and maybe post a follow-up on the maths desk. --NorwegianBlue talk 23:36, 27 November 2006 (UTC)
Although the original question was about climate, I'll limit myself to considering the position of the sun, depending on location and time of year. Let's call the hypothetical planet "Arthur", and assume that its solar day is 24 hours. On Arthur, the ecliptic would be orthogonal to the celestial equator. Thus, at the equinoxes, conditions would be the same on Arthur as they are on Earth, with day and night being 12 hours each everywhere (ignoring twilight and the diameter of the sun), and the height of the midday sun being (90° - your latitude), while at midnight the sun would be the same angle below the horizon.
At solstices, one hemisphere would have midnight sun, and the other hemisphere would be in darkness, the height of the sun would not change during the day, and be equal to your latitude.
During the rest of the year, day and night would always be 24h at the equator, but the sun could rise anywhere on the eastern horizon, depending on the time of year, and would reach a height of anywhere from 0° degrees (solstices) to 90° (equinoxes). At all intermediate latitudes, there would be midnight sun part of the year, and the sun would reach a height of 90° twice a year, like it does in tropical regions on Earth.