spoiler Can someone help me understand what would really happen if their sun and moon stopped cycling?

[Unity 332]

So, the earth and moon orbit around the sun, at least In our galaxy.

But when Queen Chrysalis abducted the Luna and Celestia the sun and moon stopped spinning.

Now I have no idea what this would mean for them, I say for them because I think if the day and night stopped cycling that would mean earth would have to of stopped moving, and I know just what that would entail for us poor poor humans.

But i am having a hard time understanding what this means about their solar system, after all, when the sun and moon stopped cycling for them they obviously didn't get completed flumg around and destroyed like we would if that happend (I think).

So anyways, how would their solar system have to operate so that the sun and moon could stop cycling and there would be no apparent destruction of their world?

Would the orbits have to be completely different? Would the sun and moon have to orbit their planet and also be the same size? 

What do you think.

[Iam 526]

The only possibility for such thing close to real life is that Earth would stop spinning around its axis, so in the Earth conditions the night and day would be 6 months long. If you are talking about moon and sun "stopped spining", it would just stop (wait, editing!) move much slower on the firmament, not stopped spinning (around theirs axis, in theory they would still orbit things as normal). It reminded me about a hypothetical situation that had been talked on National Geographic channel:

Spoiler

 

It's not accuarate of course what would really happen, but this is just a scenario, as all other hypothetical situations.

Edited August 27, 2018 by Iam
*repairing mistakes*

[Moon Glow 81]

Now, I'm no scientist, I just know the super basics about stuff and even then I could be wrong so... take what I have to say with a grain of salt 

The earth rotates so fast it's like its not spinning at all - it also orbits around the sun while the moon orbits around the earth in a gravitational pull. If the sun and moon ceased to go around the planet, it would mean that the earth was no longer going around the sun and the moon was not going around the earth. I imagine it would somehow mean the earth's gravitational pull would not be as strong? And that the sun's pull was also... bleh? In either case all life would end relatively quickly 

However, this is thankfully not earth! They live on a planet in a universe that is strongly influenced by magic that is controlled by creatures on that planet - maybe in their universe, the sun AND moon orbit around their earth? Like it really is the centre of the universe  In which case, as we've seen in a couple of Discord episodes and the MLP movie, I feel like they would be okay for a time. I mean, wherever the sun and moon were stuck, everywhere would suffer environmentally. I feel like maybe a large group of unicorns might be able to attempt to bring normalcy to the rotations? But this is also making me wonder if Luna and Celestia are really in control of the constant, every-day movement of said celestial bodies or if they only raise and lower?

[CypherHoof 26,483]

11 minutes ago, Moon Glow said:

However, this is thankfully not earth! They live on a planet in a universe that is strongly influenced by magic that is controlled by creatures on that planet - maybe in their universe, the sun AND moon orbit around their earth? Like it really is the centre of the universe  In which case, as we've seen in a couple of Discord episodes and the MLP movie, I feel like they would be okay for a time. I mean, wherever the sun and moon were stuck, everywhere would suffer environmentally. I feel like maybe a large group of unicorns might be able to attempt to bring normalcy to the rotations? But this is also making me wonder if Luna and Celestia are really in control of the constant, every-day movement of said celestial bodies or if they only raise and lower?

I am not sure "orbit" cuts it either. The way the sun and moon are portrayed in the series  it looks more like the sun is raised and/or lowered on one side of the sky, and the moon raised and/or lowered on the other (rather than each traversing in an arc then returning "under" the world for the next day) although it is odd that when luna and celestia are trapped during the S4 Premiere, BOTH bodies are in the sky.  That's not consistent with a lot of other stuff, but.. yeah.

[Moon Glow 81]

Just now, CypherHoof the Reblanked said:

I am not sure "orbit" cuts it either. The way the sun and moon are portrayed in the series  it looks more like the sun is raised and/or lowered on one side of the sky, and the moon raised and/or lowered on the other (rather than each traversing in an arc then returning "under" the world for the next day) although it is odd that when luna and celestia are trapped during the S4 Premiere, BOTH bodies are in the sky.  That's not consistent with a lot of other stuff, but.. yeah.

Well, as we all know, the sun rises in the east and sets in the west - so it's safe to assume that similar measures are met in the pony world as the sun and moon are consistent (at least as far as I've passively observed), ergo they are orbiting the planet, especially since in our world if you were just standing and looking at the horizon you can't physically see the sun or moon curving around O: we just see it go past the line of the horizon

For having both bodies in the sky, it's certainly strange and such and not really consistent which I agree with, however I think that can simply be explained as a cause of the Tree Of Harmony? O: I wonder if that somehow has something to do with it 

[CypherHoof 26,483]

3 minutes ago, Moon Glow said:

Well, as we all know, the sun rises in the east and sets in the west - so it's safe to assume that similar measures are met in the pony world

Sadly, that's a bit circular (no pun intended)

You are starting by assuming your conclusion is correct, then using that to demonstrate... your conclusion is correct.

when the storm king is playing with stolen alicorn powers, the sun raises and lowers screen left, the moon screen right - same positions as in the S4 premiere. I have no reason to assume (unless I have missed something) that the sun isn't raised to its working height each morning, then lowered again in the evening to its "resting" position while the moon is then raised to the same height to bring moonlight to the sleeping world.

[Jeric 46,884]

 

We don't know the cosmological history of the Equestrian star system, so it's hard to say. I have some ideas though. As a little hint, the Sun in out universe does have an orbit ... to simplify, it isn't rotating perfectly in static position due to the gravitational tug of the other objects in the solar system. 

That said, I've yet to invision any exact system that replicates what we see on the show. Even in the situation of a binary system with a G type star and a equal mass object not in the visual spectrum. Chaulk it up to magic. 

I can tell you that if our Sun stopped rotating that means the fundamental force of gravity is gone and RIP existence anyway. 

[RDDash 19,246]

One theory is that they would have to go underground to survive cold harsh winter (night side), the planet still produces it's own heat due to thermodynamics even if the sun is going to be switched off.

The second theory the sunny side going to become a wasteland. The twilight side where they ended up is going to end up a little bit windy. If they go into the mountains they might be okay due to somewhat flexible climate.

Edited August 27, 2018 by R.D.Dash

[Goat-kun 2,531]

Their sun and moon are ancient relics of the old gods that have the uncanny ability to warp in and out of deep dreamscape via two cyclopean gateways. Each relic is comprised of a chassis called the barge and a core made out of a gargantuan manalith infused with primordial light. Why do they heed the ponies, you ask? I believe you already know the answer.

 

Now, to answer the question about what would happen if the celestial transition stopped: as long as one of the relics would still be fairly visible in the sky, nothing.

[SharpWit 2,867]

If the royal sisters went permanently missing and the sun and moon were left in place, I think over time they'd begin to move again on their own. Equestria is a very unnatural place. The ponies have shaped a majority of it to such an extent that even clouds not made by their own factories are considered strange. In the absence of a hoof/magic to guide the world, nature will take back its rightful place. The world will continue to thrive but it won't be so finetuned. As our Sun and Moon are, they won't revolve perfectly in sync but in their own time. The weather will react accordingly and it will likely become harsher along with the seasons and all the other stuff that would reflect how life is for us.

Now if the sun and moon just stay in place then I suspect one side of the world will be seared and the other frozen, but not for a long time since magic still is a thing, and there will be an area going across the planet that will be both day and night and where life could survive. A Twilight Zone if you will.