@Sereg: Fair enough, since your fanon has different pantheons for each species. Mine doesn't - though even if it did I'm not sure I actually consider the changelings a different species so much as just another subspecies of pony(If that, honestly. The line of thinking that puts Chrysalis as the ex-goddess of love has her basically keeping the changelings alive under her own power, which is why she needs a constant fuel of love for them. They feed on love that they give to her that she turns into life energy for them.)
@Librarian: Sorry to hear. I won't pry.
Twilight informs us that the constellations are identical to our own.
Also, she gives a scientifically accurate explanation of comets, which makes the whole raising the sun thing even weirder.
Life is simple: it has no nontrivial normal subgroups.
Potter universe wizards have terrible survival senses and are far less savvy than same-world muggles because of their over-dependance on their declining magics.
And also they completely missed out on the scientific revolution and aren't very creative to start with.
Life is simple: it has no nontrivial normal subgroups.
kicked her sister into the sun
We don't know that. She was probably hiding since she knew she couldn't bear facing her sister again.
Life is simple: it has no nontrivial normal subgroups.
Again,

Equestria's planet is an anomaly caused by overuse of magic, and has trouble functioning without outside forces. Celestia does nothing more than help the rotation of the planet.
I have a message from another time...
I'd think Earth Pony innate magic can make it so that plants can grow by moonlight.
I like to think that they can grow trees without dirt, water, or sunlight, if they try hard enough.
Life is simple: it has no nontrivial normal subgroups.
They aren't even really worshipped as gods though.
Life is simple: it has no nontrivial normal subgroups.
@Storyyeller: Which is one of the reasons I don't think they are gods.
Unity of the Sun Mare
They should call her Chyrssie for maximum annoyance points.
Life is simple: it has no nontrivial normal subgroups.
@Blissey: The Solar Eclipse shall last... FOREVER!
I wonder if Nightmare Moon would have relented when ponies start actually dying.
You can't expect me to be fine.
I don't expect you to care.