Which orbits which?

Okay while drafting a response to a comment about the Dragons being aliens again (that I scrapped in favor of making this thread since the fanfest thread here seems to be closed), I started to wonder if the planetary model is geocentric (in which case Hydaelyn the planet is the center of the galaxy and everything, including the sun orbits it) or Heliocentric (what we assume to be is the case based on that its how our galaxies work. With a Star being the center and everything orbiting it, including planets with life)?

There does not appear to be any particular evidence of Geocentric orbital configurations. As far as I can tell, Hydaelyn orbits the sun, while Menphina and until recently Dalamud orbited Hydaelyn.

I don't believe there's any hard evidence either way at present. Has anyone analysed the movement of the stars at night over several days? If they have a static pattern in their movements each night then you could argue that you're looking at a geocentric system, but that might also just be a case of game design trumping lore.

This has led me to consider something I'd not thought of until now though (3.4 spoilers)!

The reflections of the source; are they reflections of just Hydaelyn or the entire cosmology? When the inhabitants of the First look out at the sky at night are they seeing the same stars as us or different ones? If Midgardsormr is an alien life form then is he potentially unique to the Source?

Normal physics apply, so until we're told otherwise that includes on a cosmic scale. There is a sun, so we've got a heliocentric system.

(And the moon is not Menphina. It's Zodiark, or what's left of him.)

he came from another star with 7 eggs, not sure if it means another reflection(Id assume leaving a planet is probably cause its about to go down or is no longer pleasantly inhabitable) somehow, he got to know/form a relationship with hydalyn, amd began protecting silvertear lake. Not sure if he came from a reflection world, or that each world is another multiverse in reflection of the entire cosmology of the source itself