Okay, let's say that the solar system in the fictional setting is as it is in reality.
By the time twelve hours has passed since its arrival, the sun has been moved to the other side of the new planet
The sun will continue to revolve around the new planet, making one revolution every twenty-four hours.
Now, an Earth-sized planet appears roughly the same distance away from the sun, on the opposite side from the Earth.
Slab Bulkhead wrote:EDIT: L1 (the point between the sun and the earth), L2 (a point where the earth is between you and sun), and L3 (a point on the exact opposite side of the earth from the sun) are all inherently unstable, and trying to put anything there is like trying to balance a marble on top of a basketball. It requires CONSTANT adjustment to keep it in that position.
Knight of L-sama wrote:That's not to mention that there are mass constraints for a Lagrangian orbit, even the more stable L4 and L5 orbits. A ratio of 24.5 if I remember correctly. Something the approximate size of the Earth in any of the Lagrangian points are going to destabilize not only their orbits but Earth's. As for how long it would take to notice... probably days to weeks for the really sensitive equipment, months to years before the maco-effects start kicking in.
Spica75 wrote:With that statement, you make the rest impossible as what you describe does not conform to reality.
Since you wondered about it, and I left it out because it wasn't relevant to what I was asking, what's introduced to the solar system is My Little Pony: Friendship is Magic.
You're looking at it the wrong way and assuming the wrong things. When I said what you quoted, it was merely to establish that the solar system in general looked and functioned as it does in reality. Whether the change that occurs after that is possible or not is inconsequential, which is why I asked for its affects rather than addressing what you did first.
Spica75 wrote:Then simply put it in orbit around the sun, same orbit as Earth but other side of the sun. That way you get a reasonably stable orbit and don´t have to explain away effects that simply could not happen with an extremely massive force added into the mix.
I wasn´t assuming anything, i went exactly with what you said.
Problem was the statement of having the sun suddenly orbit the new planet in a 24 hour orbit. Just not going to happen.
At 1 AU distance, the Earth has an orbit time of 365 days, at 0.46 AU, Mercury has an orbit time of 88 days. To reach 24 hours you would need to be in what is effectively called geostationary orbit, which is just under 36000km, while an AU is 150000000km.
If you DO put the new planet as stated, and then FORCE the sun to dash off into a 24 hour orbit by effectively using insane amounts of energy to control the sun, to suddenly move the sun at EXTREME speed to make it move close enough to the new planet that a 24 hour orbit is even remotely possible, you´re going to burn up the new planet, nothing on it will survive, you´re also going to drop the average temperature on earth drastically, almost literally overnight when the sun flies off to twice the distance it was the day before(expect earth average temperature to drop from 15C to maybe -55C or something, effectively ending the vast majority of life on earth in the near future), and depending on where other planets are in their orbits, Mercury and Venus(Mars is possible but not as likely) could end up doing "playing pool with planets", or simply "go rogue"(ie disconnect from the gravity well of the solar system and start taking a route of their own)...
Basically, doing EXACTLY what you said, then you kill everything on both Earth and new planet. It is also questionable if the new planet will even survive coming so close to the sun. Actually unless i misrecall, the new planet will end up inside the sun as the sun has a radius counted in the hundreds of thousands of km.
After checking it up, the stable orbit around the SUN, 24 hour orbit, would be 0.019 AU. The sun takes up most of the visible sky, not than anyone is going to be able to see it, being burned crispy and all. The sun is just ~4 times its own radius away from the planet.
If you make the sun orbit the planet, due to the smaller gravity well, that shrinks down to 0.002 AU. Planet just got eaten by the sun.
Sun radius, ~695700km, 0.0046 AU.
Why can't sunbutt (AKA Celestia) move the sun as she usually does? (I mean, aside from the whole thing about magic not existing prior to this event.)
Although I'm guessing that the conditions on Earth would be worse, since the sun would be three times the distance from the Earth at its farthest.
I also wouldn't mind exploring what would happen if it appeared close enough to the Earth to be a satellite or become a part of a binary system.
You might have some fun with this: https://phet.colorado.edu/sims/my-solar ... em_en.html
Neko- wrote:All models are based on the standard based planetary orbits...
CPS wants to include an 'orbit' where the massive gravity wel orbits a small planet, at which point the rest of the solar system is going to follow that massive gravity well.
The fact that this alone flies straight in the face of all known logic and standards known, makes me pretty sure it's not something anyone ever conceived for a modeling of what would happen
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