07-06-2017, 03:26 PM
Good question!
Well, I couldn't answer that without looking it up, and I would be surprised if most pros could - it'd be the sort of question a planetary scientist might know though, and I guess a lot of amateurs would know. With my curiosity piqued, I actually asked colleagues the same question at work today. No one knew the answer! One person was close (it happened to be another astronomer living Puna!) who guessed at Nereid, which is the third largest, but no-one got the correct answer - Proteus.
Well, I couldn't answer that without looking it up, and I would be surprised if most pros could - it'd be the sort of question a planetary scientist might know though, and I guess a lot of amateurs would know. With my curiosity piqued, I actually asked colleagues the same question at work today. No one knew the answer! One person was close (it happened to be another astronomer living Puna!) who guessed at Nereid, which is the third largest, but no-one got the correct answer - Proteus.