Planet hunters bag systems with super-earths and double saturns

行星搜索系统发现类地行星和双木星系统

But because the saturns would rise at different times every night , the hypothetical alien civilization would have a hard time using its companion planets to tell time or create a calendar .

但由于木星每天晚上升起的时间不同，这些想象中的外星人，将很难划定时间，或制订日程表。