Sorry but Rory is an Irish name. The meaning of Rory Is Red King. Some Auroras I know are called Rory, but when they look up for the meaning, sorry, it's masculine.
The name Rory is a masculine name from the Celts, literally translating to "red king" so I don't know how anyone could conceive using it for a girl. I think it makes for a strong boy's name. I'd definitely use it for a son.