I would have liked the information from Oh to be more detailed too. After this episode, Picard & co are basically flying blind into this place with the two moons because it's the only lead they have, and we as the audience have no idea what awaits there either. Of course, this is in character for Picard -- he'd never give up on the mystery now -- but it does seem funny that we know so little about such an important aspect of the story.