If our universe is in orbit around something, what would the evidence look like ?

 

If the orbit were irregular ?

 

If it was spinning/rotating ?

 

 

If the Universe was orbitting something (assuming the possibility) our universe would be inhomogeneous and anistropic. We would notice a preferred direction in expansion with a higher mass density as you approach the orbitting body.

 

If our own universe is rotating upon itself we would also see a non uniform mass distribution.

 

Our universe however is homogeneous and isotropic which combined has a uniform mass distribution.

If our universe is in orbit around something, what would the evidence look like ?

 

If the orbit were irregular ?

 

If it was spinning/rotating ?

 

 

Just double checking. Do you mean universe or galaxy?

Klaynos, universe

Klaynos, universe

Then see Mordred's answer.