Timeline for Air trapping polar vortexes on tidally locked planets?
Current License: CC BY-SA 4.0
18 events
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| Sep 19, 2020 at 19:52 | vote | accept | mart | ||
| Sep 17, 2020 at 15:46 | comment | added | rek | General note, since it seems to be coming up: Tidally locked planets with very short orbital periods do have a Coriolis effect, because the planet is rotating to keep one face toward the sun. This has been modelled. worldbuilding.stackexchange.com/questions/4850/… | |
| Sep 17, 2020 at 15:39 | answer | added | rek | timeline score: 1 | |
| Sep 17, 2020 at 15:36 | history | edited | mart | CC BY-SA 4.0 |
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| Sep 17, 2020 at 15:23 | history | edited | mart | CC BY-SA 4.0 |
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| Sep 17, 2020 at 12:50 | history | edited | mart | CC BY-SA 4.0 |
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| Sep 17, 2020 at 12:42 | comment | added | Joe Bloggs | @AlexP Turns out I remembered the question right but didn’t stick around for the comments section! | |
| Sep 17, 2020 at 12:28 | comment | added | AlexP | @JoeBloggs: That accepted answer to the "this one" question is manifestly wrong. JDługosz's comments on that answer are right. Planets are by definition almost spherically symmetrical; there are indeed small asymmetries, which will induce precession of the axis of rotation, but the precession will be very very much slower than the rotation. (For example, Earth rotates once in 23 hours 57 minutes; its axis of rotation precesses once in about 26,000 years.) | |
| Sep 17, 2020 at 12:19 | comment | added | Joe Bloggs | @AlexP This one in fact. | |
| Sep 17, 2020 at 12:19 | comment | added | mart | worldbuilding.stackexchange.com/questions/103792/… | |
| Sep 17, 2020 at 12:13 | comment | added | Joe Bloggs | @Alexp: I have a recollection of this exact question being asked on WBSE actually... | |
| Sep 17, 2020 at 12:10 | comment | added | AlexP | @JoeBloggs: I don't know, I would say that for a planet (= very massive and almost spherical body) precession cannot be that fast; it's too fast by some six orders of magnitude or even more. | |
| Sep 17, 2020 at 12:08 | comment | added | Joe Bloggs | @AlexP: IIRC you can do it if the planet is precessing at exactly the right rate, but it’s not stable and it’s highly unlikely to ever occur naturally. | |
| Sep 17, 2020 at 12:07 | comment | added | Joe Bloggs | ‘Sunpole’ is a very cool term. You might want to look into Saturn’s Hexagon for some interesting reading on polar vortices. | |
| Sep 17, 2020 at 12:06 | history | edited | mart | CC BY-SA 4.0 |
removed paragraph on rotation
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| Sep 17, 2020 at 12:06 | comment | added | mart | I thought I read somewhere that this was possible but what you say is entirely plausible - I'll remove that part, thanks! | |
| Sep 17, 2020 at 12:04 | comment | added | AlexP | It is not possible for the planet to be "rotating around it's daypole - nightpole axis". A solid body can rotate around only one axis (because geometry, and we cannot argue with geometry), and if the planet is tidally locked then it is already rotating around an axis perpedincular to its orbital plane. | |
| Sep 17, 2020 at 11:55 | history | asked | mart | CC BY-SA 4.0 |