Trick-or-treating might be beyond reach in certain spots this year, yet the coronavirus won’t stop this special treat in the sky: Two full moons coming in October 2020 — including an rare “blue moon” on Halloween.

The first full moon, nicknamed the “harvest moon,” will be shining on Thursday, Oct. 1, and the other — known as a “blue moon” since it’s the subsequent full moon during a similar schedule month — will be shining in the sky on Saturday, Oct. 31.

Not exclusively will this be an ideal eerie background for Halloween, however an uncommon one.

The last time a full moon lit up the sky on Halloween night return in 2001, yet just in the Central and Pacific time regions, as per the Farmers’ Almanac. All the U.S. time regions were last treated to a full moon on Halloween in 1944.

How rare is a blue moon on Halloween?

All things considered, a blue moon on Halloween is as rare as any full moon on Halloween. NASA space master Tony Rice says a Halloween full moon must be a blue moon, since moon cycles are about 29.5 days and Halloween consistently falls on Oct. 31.

In this way, if there’s a full moon on Oct. 31, it must be the subsequent full moon of the month — making it a blue moon.

Back to the subject of how rare, astronomy specialists tell the Farmers’ Almanac a Halloween full moon happens around once at regular intervals. Yet, not constantly. During a portion of those stretches, the moon’s pattern of stages brings a full moon right off the bat Nov. 1 rather than on Oct. 31.

So now and again, a Halloween full moon is seen just once like clockwork. As referenced over, the last Halloween full moon in all U.S. time zones was route in 1944 — 76 years back. However, it occurred in some time zones 19 years back.

When is the next Halloween blue moon?

After Oct. 31, 2020, the following Halloween full moon (likewise a blue moon) will happen in 2039, 2058, 2077 and 2096, as indicated by the Farmers’ Almanac.

That implies the Halloween full moon will be on the 19-year cycle five straight occasions.

“The good news is that even if the moon is a day or two away from 100% full on any particular Halloween, it can still serve the purpose for a spooky backdrop since most people can’t tell the difference between a 98% illuminated moon and a 100% full moon,” the Farmers’ Almanac notes.

Two cases important: The moon will be totally full on Nov. 2, 2029 and Oct. 30, 2031, so Halloween on both of those years will include a close full moon.

What is a harvest moon?

The Old Farmer’s Almanac says the moniker “harvest moon” alludes to the harvesting of yields in early autumn in North America, especially corn and grain, taking note of: “Around the harvest moon, the moonrise happens soon after sunset for several evenings in a row, which traditionally allowed farmers to have much more light to finish their harvest.”

As indicated by EarthSky.com, the “harvest moon” nickname got well known in the mid 1900s due to music. A tune called “Shine On, Harvest Moon” was written in 1908 by vaudeville stars Nora Bayes and Jack Norworth.

It later was recorded by a wide range of artists, incorporating Ruth Etting in 1931, Kate Smith in 1933, The Four Acres in 1955, and Bing Crosby and Rosemary Clooney in 1960, as indicated by BING magazine.