[ Another moment of wide-eyed innocence - and then his look melts into a grin and a casual shrug. His voice does drop quite a bit, though - he clearly doesn't want any of the locals to be able to eavesdrop. ]

Ah, you caught me. Yes, I haven't the faintest clue what Sirius is. Some sort of old-Earth star, I presume? I know the land-bound barbarians used to point and grunt at the sky. [ A quirk of his eyebrow. ] No offense.