Guardians Of The Solar System?
If we do Latin, it should be amusing/fun when translated and reflect the clan, which I consider to be casual and fun more than trying to sound "cool" or macho or whatever most of the dumb clans out there sound like. I don't think we plan to take ourselves too seriously so this seems appropriate. Such as:
"Homicidum et Chorum" ("Murder and Dancing")
"Homicidum et Rapinas" ("Murder and Looting')
"Rapinas et Chorum" ("Looting and Dancing")
"Auferat Spolia Vivere" ("Loot To Live")
And so on. I don't know anything about Latin. Just using google translate. Looks like there are lots of options for each word so we could just pick the better sounding ones or whatever.