The Saturday night moon when first rising from the Calhoun landscape was as big as you've ever seen.

The full moon of November 2020 is coming, and its nickname is the "beaver moon" - a reference to the animal's winter preparations.

The beaver moon — nicknamed such because this is the time of year when beavers build their winter dams in preparation for the cold winter — will reach its fullest phase Monday morning, Nov. 30, at 4:30 a.m. Eastern time. So it will look big and bright in the sky Sunday night and Tuesday night as well — assuming the clouds don’t block your view.

As the moon is becoming full early Monday morning, there will be a partial lunar eclipse — known as a penumbral eclipse. While it’s not as dramatic as a full lunar eclipse, experts say it could be visible to sky watchers here in New Jersey and in other areas of North America.

A penumbral eclipse takes place when the moon drifts through the outer section of Earth’s shadow, or penumbra, and part of the sun’s rays are blocked from shining on the moon during that time, according to astronomy experts at

On Monday morning, “the moon will take 4 hours and 21 minutes to glide across the pale outer fringe (penumbra) of Earth’s shadow, never reaching the shadow’s dark umbra,” says astronomy writer Joe Rao.

“About 20 minutes prior to the deepest phase of the eclipse, you might see some evidence of this faint penumbral shading on the moon’s upper edge,” Rao notes. “This corresponds to around 4:22 a.m. EST; 3:22 a.m. CST; 2:22 a.m. MT and 1:22 a.m. PST.”

If this was a full lunar eclipse instead of a partial one, the entire moon would be briefly darkened and give off a reddish-orange tint.

By the way, it is totally safe to look at a lunar eclipse with a telescope, binoculars or your own eyes. No special filters are needed.

The nickname “beaver moon” comes from Algonquin Native American tribes and American colonists, who gave nicknames to each full moon based on weather conditions, farming routines and hunting trends at that time of the year.

Some publications, like, say the November moon got its name “after beavers who build their winter dams at this time of year.”