I've got a couple of questions regarding astronomy in TES. In particular the Dwemer take on it. I've read that the eight planets visible from Nirn represent the eight Aedra, and that the three Guardian Constellations consist not only of stars but of a planet as well, Akatosh, Julianos and Arkay in respectively the Warrior, the Mage and the Thief.
As they are perceived from Nirn, the constellations follow a predictable, annual pattern of rotation across the sky. This allows mortals to attribute fixed annual seasons to the constellations, when each occupies the area of the sky where the sun rises for the same period each year.
In order for mortals to perceive three of the planets as forming fixed points in the constellations, these planets must also follow the same predictable, annual path in the sky and appear to orbit Nirn.
In order for mortals to perceive three of the planets as forming fixed points in the constellations, these planets must also follow the same predictable, annual path in the sky and appear to orbit Nirn.
Questions so far: is this conclusion correct?
Assuming the information above is all correct, I've stumbled upon an issue. If p1, p2 and p3 are indeed the three planets part of the Guardian Constellations (they're the only logical choice, since all other planets don't rotate in the same manner, and thus another trio of planets cannot permanently all remain in their constellation) they are shown, by both orreries, to reside in the same vertical plane (mathematically speaking, not lore-wise). This would imply that this plane, which also contains Nirn (p0), intersects the three Guardian Constellations.
However,the Guardian Constellations are shown to reside in different places on all star charts http://dwemerstudies.wiwiland.net/stars.html and the mere fact that each constellation represents a different month implies they're distributed evenly, each one occupying an (almost) equal angular field on the heavenly sphere (also shown on the star charts), and thus not in a vertical plane intersecting Nirn.
This means, mathematically, lore contradicts itself - either the orreries misrepresent the actual positions of the planets and the three "static" planets and Nirn are not in the same plane, or the three planets are not stationary in their constellations. Could someone please explain to me how this works, lore-wise?
Also, a last slightly unrelated question, is there a reason both orreries resemble dragons?