Context: The idea is simple if you can visualize it. A planet is commonly imagined as spinning around its axis, whose orientation doesn't change through it's orbit. What if, the planet's axis also rotated so that the planet's axis made one full rotation every year. This would result in one pole being in a perpetual summer, and the other in a perpetual winter.
Question: How would i go about calculating the temperature of the planet at sea level, at various latitudes, and with various axial tilts, assuming the planet is earth-sized and has an earth-like atmosphere?
I don't have the necessary physics background and am entirely out of my depths here.
Its* f*cking autocorrect
Polaris (89º 16' at J2000) is not quite at the north celestial pole (90º) so the former rotates around the latter daily and the north celestial pole rotates around the north ecliptical pole (66º 33' 38") every 26,000 years (axial precession). As a result Polaris is shrinking the 2x40' circle it traces by about 1" a month (minimum: 89º 32' 51" in 2102). The greek Hipparchus compared his measurements to those taken a century before by Timocharis and Aristillus and figured out the north celestial pole was moving. With a modern 5+" aperture telescope and astrophotography this should be possible within a few months —a prime candidate for this is Polaris as it does not require tracking, if an arc is recorded the telescope can be moved and its path nearly fits in a 1º field of view (~x50). The Dawes limit (with beautiful weather) for a 5" is a 0.9" arc.
So proving this shrinkage in less than a century is doable.
I was told about this and really wanted to do it, but my telescope is at my parents as I live in a city. Hopefully, this post will inspire someone to take up this challenge!
I’ve been reading about Milankovitch cycles and I was wondering how much a planet with slightly more eccentric orbit and faster axial precession would differ from our world, and how it would affect life there. Is there a work of fiction that has something like this? I’m new to worldbuilding and I love how much there is to explore so far.
I think if there were a landmass that stretched from near the northern poles to the southern tropics it would set up a reason for periodic migration to and from the north and south regions. If the continents are more disconnected then it might necessitate regular island-hopping and extremely adaptable cultures.
Senku overlooked the axial precession, since he was taken back by the different north star. He also stated how he counted time in his head so he could emerge in Spring. However, if he overlooked it and came out when it would have been spring now, wouldn't he actually have emerged in the fall, since axial precession would swap the seasons (I think)? He should have figured it out when winter came in what should have been summer, but he didn't. Is that an oversight by the author or am I missing something? I've only watched the anime once, but the thought came to me recently and now I'd really like to know.
