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HuckleB

(35,773 posts)
Mon Jun 20, 2016, 01:02 PM Jun 2016

Happy Full Moon Solstice!

http://www.slate.com/blogs/bad_astronomy/2016/06/20/full_moon_solstice_june_20_2016_has_both.html

"...

I enjoy writing about the solstices and equinoctes* when they happen, so you can read all about how and why they occur in past articles. I’ll note that Monday is not the date of the earliest sunrise and latest sunset though; that has to do with the Earth’s orbit being slightly elliptical, so I’ll make a special point of linking to this article last year where I explain why that happens. I’ll also note that some people call this the first day of summer (or winter for those in the south), but I disagree; I tend to think of it as actually the midpoint. You can read about that to your brain’s delight as well.

No, instead of spending time on that here, I’d prefer to point out something rather special that led to me wandering down a rabbit hole Sunday night as I researched it: Not only is the solstice Monday, but the Moon is full on Monday as well. That moment occurred at 11:02 UTC (07:02 Eastern; I’ll note it’ll look full all day and probably even Tuesday as well).

A full Moon on the same day as the June solstice (or the December one, for that matter) is relatively rare. As I thought about this Sunday night, I wondered just how rare it was. My first thought was that it probably happens once every 30 years or so, since the full Moon can occur on any day, and there are 30 in June.

But then I realized it’s not that simple. Sometimes in astronomy two cycles can beat together in unusual ways, throwing off what you might expect. So I dug into it. I found a list of solstice full Moon dates on the Farmer’s Almanac website, and perusing the numbers it appears that we get a full Moon on the June solstice roughly every 19 years or so … or multiples thereof.

..."



A fun read, with links to more fine reading.

So, yes, A Happy Full Moon Solstice to all!






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Happy Full Moon Solstice! (Original Post) HuckleB Jun 2016 OP
A great night for beginning astronomers, get out your telescopes everyone! redstatebluegirl Jun 2016 #1
Enjoy Yourselves! HuckleB Jun 2016 #2
Thanks we have a good bottle of wine and a telescope! It will be great! redstatebluegirl Jun 2016 #3

redstatebluegirl

(12,264 posts)
1. A great night for beginning astronomers, get out your telescopes everyone!
Mon Jun 20, 2016, 01:04 PM
Jun 2016

Ours will be set up in the country without the lights of the city polluting the view.

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