Board Thread:Questions and Answers/@comment-26921356-20180322035334/@comment-7050565-20190127011425

Whoever they are better be Small Star-Solar System for Twilight not to stomp. Despite what Wiz said, Celestia moving the Sun is not a unique power, as confirmed by earlier episodes, Horse Play, and the Journal of the Sisters. It's just Telekinesis.

Of course Twilight by her own admission is weaker than Celestia, and scales to Starswirl, who can perform the same feat with 5 others helping him. Hence Small Star instead of full Star level. There are calcs that put them in the SS range, but that depends on if you think they're legit or not.