Does the Sun Move and What Forces Drive its Motion?

[Milamber]

I was wondering about stars, and if anyone can answer part or one of these questoins (though answer more if you really want to) i would really be grateful!

Does the Sun move? if it does, how and what are the physics and forces involved in that.

When looking at the sun, I've only found one accepted theory as to why it evolved, and never found one as to how it moves. Are there anyother possible theories out there[?]

 

[Milamber]

Thanks

Thanks for that, and i did mean movement in space. However gravity alone does not make something orbit, the two would siumply move together until tehy collide. Does anyone have any ideas as to where the sun got its original speed to make it orbit?

 

[Janus]

Originally posted by Milamber
Thanks for that, and i did mean movement in space. However gravity alone does not make something orbit, the two would siumply move together until tehy collide. Does anyone have any ideas as to where the sun got its original speed to make it orbit?

The moves due to left over angular momentum from when the galaxy formed.

 

[HallsofIvy]

Thanks for that, and i did mean movement in space.

Then you still do not understand the first response. All motion has to be relative to some object. There is no such thing as "movement in space" without being relative to something. The other posters assumed you meant "relative to the center of mass of the galaxy".

 

[Phobos]

Welcome to Physics Forums, Milamber!

 

[meteor]

Originally posted by Milamber
I was wondering about stars, and if anyone can answer part or one of these questoins (though answer more if you really want to) i would really be grateful!

Does the Sun move? if it does, how and what are the physics and forces involved in that.

When looking at the sun, I've only found one accepted theory as to why it evolved, and never found one as to how it moves. Are there anyother possible theories out there[?]

The sun is moving around the galaxy towards a point called apex, that in this moment is situated in the constellation of Hercules, very near to the frontier with the constellation of Lyra

 

[dr.ununquadium]

I was always under the impression that the sun orbits the center of our galaxy where there was a super-massive black hole.

The foces involved in this movement are the forces present when an object as dense as a super-massive black hole is created.

 

[Nommos Prime (Dogon)]

What about Universal Expansion?

I would put forward that the sun (and all stars) do not move at all (barring slight perturbations caused by the feeble force of gravity). What actually makes stars move is the expansion rate of the Universe (ie. a constant process of the unfolding of space/time).

 

[Adrian Baker]

Originally posted by Nommos Prime (Dogon)
I would put forward that the sun (and all stars) do not move at all (barring slight perturbations caused by the feeble force of gravity). What actually makes stars move is the expansion rate of the Universe (ie. a constant process of the unfolding of space/time).

How does your theory explain the paths stars take around the galactic centre then?