/sci/ - Science & Math

[Anonymous No.7230808]

How does the star move in multiple directions at the same time if this is how orbits work?

[Anonymous No.7230813]

>>7230808
>Move in multiple directions at the same time
Please explain

[Anonymous No.7230819]

The same way you can spin a rock that is attached to a string while you are yourself spinning in a circle

[Anonymous No.7230823]

>>7230813
this

holy shit lol im dying

[Anonymous No.7230826]

>>7230813
The gif is from Wikipedia demonstrating how a barycenter orbit works but the barycenter would be different for every planet, so how does the Sun move around multiple barycenter points at the same time?

[Anonymous No.7230836]

>>7230826

I think the effects superimpose, at least from the conservation laws that would make sense.

[Anonymous No.7230838]

Maybe this gif is better, if you added a second planet, how would it work?

All the examples on Wikipedia only include two bodies.

[Anonymous No.7230844]

>>7230808
Do you mean how it moves when there are more than one body orbiting it?

You can pretend the bodies are point masses and then you can just add all the forces from the orbiting bodies into one

[Anonymous No.7230852]

>>7230826

[Anonymous No.7230860]

>>7230852
So it doesn't just move around one point, it goes off in every direction depending on where the other bodies are?

Okay, that makes sense. Do all the planets shift around with it too?

[Anonymous No.7230872]

>>7230808
The star actually rotates around the center of mass of the entire system, not with individual planets. So you would just find the center of mass of the two planets + star

[Anonymous No.7230879]

>>7230860
yes

[Anonymous No.7230921]

>>7230826
Congratulations, you have discovered the n body problem.

[Anonymous No.7230938]

Something a little like this