It’s Almost Time for a Blue Moon

July 31, 2015 at 3:43 am Pacific Standard Time

(Culver, Jefferson County, OR (Longitude W121° 13′, Latitude N44° 31′)

Blue Moon over Mt. Hood (oregonlive 2012)

Blue Moon over Mt. Hood (oregon live 2012 – last blue moon)

 

Approximately every 33 months you will witness a “blue moon.” No, the moon won’t turn sapphire, it is a phenomenon that takes place when there are two full moons in the same calendar month.

The term “once in a blue moon” has historically had a number of different meanings. The exact origins are unknown but thought to be a recognizable phrase for more than four hundred years. An older definition according to the Maine Farmer’s Almanac, a “blue moon” occurs when there are three full moons in a season (winter, spring, summer or fall); but there is a very rare occurrence when enough high altitude particles, from a volcanic eruption, ice crystals or forest fire, are in the air that does actually give the moon a blue-ish cast.

If 3 am is too early (or late) for you, you can see 99% of it again Friday night at 8:35 pm (PST) but don’t miss it, the next blue moon will not show it’s face until 2018.

Friday, July 31 – If you are visiting the Cove Palisades, we will have a blue moon interpretive program at the Crooked River Amphitheater at 9 pm with telescope viewing and a night hike starting at the Deschutes Camp Coyote Amphitheater at 8:30 pm.

About coveranger

"One's happiness depends less on what he knows than on what he feels." - Liberty Hyde Bailey

Posted on July 30, 2015, in Astronomy, Events and tagged . Bookmark the permalink. Leave a comment.

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