Skywatchers respecting November’s full moon will likewise will see another treat: a penumbral eclipse, when the moon goes through Earth’s external shadow, on Monday, Nov. 30, as per NASA.

The moon will be at its fullest for one minute — on Monday, that occurs at 4:30 a.m. EST (9:30 UTC) — yet the moon will show up full for three days: from Saturday night through Tuesday morning (Nov. 28 to Dec. 1).

Then, sky gazers need to recollect multiple times to get the penumbral eclipse: It begins before the full moon at 2:32 a.m. EST (7:32 UTC); arrives at its most extreme at 4:42 a.m. EST (9:42 UTC), when 83% of the moon will be covered with Earth’s weak shadow; and finishes at 6:53 a.m. EST (11:53 UTC) Monday morning.