Solar System

  • Thread starter chuckset
  • Start date
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I know that the earth rotates around the sun, but what does our solar system rotate around?


P.S. I'm a noob when it comes to anything related to astronomy, sorry.
 

Nabeshin

Science Advisor
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Our solar system rotates around the center of our own Milky Way galaxy. Our galaxy, in turn, moves around according to the gravity of (primarily) our local group of galaxies, of which Andromeda is the primary contributor (not exactly an orbit, more like we're plunging together). Beyond that, I'm sure our local group has some motion with respect to other clusters of galaxies, but I don't know the specifics of it.

Cheers!
 
547
28
Go to You Tube search for "Monty Python Universe Song" that gives all the information you need.
 
778
2
Our solar system rotates around the center of our own Milky Way galaxy. Our galaxy, in turn, moves around according to the gravity of (primarily) our local group of galaxies, of which Andromeda is the primary contributor (not exactly an orbit, more like we're plunging together). Beyond that, I'm sure our local group has some motion with respect to other clusters of galaxies, but I don't know the specifics of it.

Cheers!
Latest data indicates the Milky Way is heavier than M31 (the Andromeda Galaxy), but it's very hard to measure.

Our local group is also moving in a certain direction with respect to the Cosmic Microwave Background, producing what's called the CMB Dipole. Look it up for exact details of direction and speed, but it's roughly ~600 km/s I think.
 

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