Over on WDTPRS, there is a fun canonical argument over the jurisdiction of the moon. Check it out here. Apparently, the Holy See has claimed that the moon, should there ever be anybody there, will be part of the diocese of Rome. This is against the alleged rights of the bishop of Orlando, who also has some claim, given that people who have gone to the moon have left from there.
My question is, should the moon ever be elevated to be its own diocese, what will it be called? Here I need help from some of you ecclesiastical Latinists. Would it be the dioecesis Lunensis? Didn't there used to be a Roman city called Luna that would have already had that title? Maybe dioecesis Lunae, or just dioecesis Luna? I'm not sure on this one.