Solar system Definition and 307 Threads

Evening all. My teacher has given us the mass, distance, and gravitational force of every planet in the solar system. we have to work out every planets acceleration, speed, and orbital period. I'm having some trouble with the acceleration. This sshould be a very small number right? I'm using...

Sunless "solar"system Is there such thing as a sunless solar system maybe not called solar but has all of the charicteristics of one minus the sun. Possably a huge object being the gravation force or Dark matter or a mini black hole

I was wonding how out solar system will end. Simple enough

http://www.msnbc.com/news/934038.asp Its similar in that the "Jupiter-like" planet they've viewed in this case is caught in a circular orbit. Most of the planets found in other star systems are in the oval shaped orbit. The oval orbit of large planets tends to wack the smaller ones out of the...

according to CNN anyway... http://www.cnn.com/2003/TECH/space/06/24/mars.moon.ap/index.html funny, since Phobos is "one of the darkest objects in the solar system"! http://www.spaceref.com/news/viewsr.html?pid=9578

Can someone tell me, how fast is our solar system moving in space relative to a static coordinate system in space?

If some of the people that frequent this area of PF could please post their findings and or opinions on this debate I would appreciate the input very much. Did the planets of our solar system form uniformly; basically at the same time, out of the same solar material? Or, did some form sooner...