Sentences with phrase «orbital periods exactly»
These moons have orbital periods exactly 2 and 4 times as long as Io's, which results in the three moons lining up every so often.
https://www.newscientist.com/ Not exact matches
The elliptical orbit, called P / 2, is exactly half of the moon's orbital period; this means that TESS will orbit Earth every 13.7 days.