Hi im trying to find a way to make astral bodies orbit one another but im new to UE4 and havent got a clue what im doing ive been able to make the planets spin with atmosphere ect but i need to find a way to have them orbit one another any ideas in the simplest way possible would help me out alot 
You can use the spline component to move an object on a path. Look at the example content for splines. Example 2.3 I think
https://docs.unrealengine./latest/INT/Resources/ContentExamples/Blueprint_Splines/index.html