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Weather Watchers

elleng

(130,857 posts) Mon Oct 19, 2020, 02:59 AM Oct 2020

2

A spooky blue moon will illuminate the sky on Halloween.

The night sky will bring an added treat this Halloween.

https://www.king5.com/article/weather/accuweather/how-to-see-halloween-blue-moon/507-6adba7d9-cfa6-4aba-884a-ac531bf709d3?

6 replies

= new reply since forum marked as read

Highlight:

A spooky blue moon will illuminate the sky on Halloween. (Original Post) elleng Oct 2020 OP

A full moon on a Saturday Halloween occurs once in about every 217 years. n/t John1956PA Oct 2020 #1

and my Grands are getting ready! elleng Oct 2020 #2

So once in a blue moon? soothsayer Oct 2020 #3

No need for you to go, it's a good question. John1956PA Oct 2020 #4

Two moons in the same month do not constitute a blue moon. PoindexterOglethorpe Oct 2020 #5

That's definitely one definition of a blue moon --two full moons in one month soothsayer Oct 2020 #6

John1956PA

(2,654 posts)

1. A full moon on a Saturday Halloween occurs once in about every 217 years. n/t

Reply to elleng (Original post)

Mon Oct 19, 2020, 04:02 AM

Oct 2020

elleng

(130,857 posts)

2. and my Grands are getting ready!

Reply to John1956PA (Reply #1)

Mon Oct 19, 2020, 04:04 AM

Oct 2020

soothsayer

(38,601 posts)

3. So once in a blue moon?

Reply to John1956PA (Reply #1)

Mon Oct 19, 2020, 04:09 AM

Oct 2020

I’ll show myself out

John1956PA

(2,654 posts)

4. No need for you to go, it's a good question.

Reply to soothsayer (Reply #3)

Mon Oct 19, 2020, 04:26 AM

Oct 2020

A "blue moon" occurs about every 2.6 years. For a blue moon to fall on a Saturday, the frequency is about every 18.2 years (i. e., 2.6 x 7). For that Saturday blue moon to fall in October, the frequency is about every 218 years (i. e., 17.5 x 12).

PoindexterOglethorpe

(25,839 posts)

5. Two moons in the same month do not constitute a blue moon.

Reply to John1956PA (Reply #4)

Mon Oct 19, 2020, 05:41 AM

Oct 2020

Sigh.

soothsayer

(38,601 posts)

6. That's definitely one definition of a blue moon --two full moons in one month

Reply to PoindexterOglethorpe (Reply #5)

Mon Oct 19, 2020, 07:15 AM

Oct 2020

Which definition do you prefer?

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