User blog comment:Imouto-tan/Septentriones (The Big Dipper)/@comment-4867780-20150619031856/@comment-4867780-20150621082728

The Septentriones all have Constellation Physiology though, just like a family (or a least a common power source) and very unlike the JLA wo all have radically different background.

So it stands to reason that they would have relatively similar physical capabilities :P