Wednesday, December 6, 2017

What is perigee-syzygy?

The Supermoon was seen two days ago.  There were beautiful pictures of it.  It was a big moon in the sky here.

The term used for this is perigee syzygy.  This term seems a bit weird and crazy.  It is a technical term originating from the Greek words sun and to yoke:
"The technical term for a Supermoon is perigee-syzygy of the Earth-Moon-Sun system. In astronomy, the term syzygy refers to the straight-line configuration of three celestial bodies.
When the Moon is close to the lunar nodes of its path during syzygy, it causes a total solar eclipse or a total lunar eclipse."

You can find out about the Antumbra, the Penumbra and the Umbra at - great words too.  

I expected to do a searching and find all kinds of crazy products and websites.  It turns out to not be the case - there is  Perigee Syzygy - a Mountain Town Brew - it's a double style beer.  And there's some 'moonstone' jewellery.  

Our next two super moons will be January 1st and January 31st. So for the next one, most astronomers suggest watching the supermoon right after sunset and into moonrise, and minutes before the next sunrise as well.

If you want to see wonderful pictures of super moons - here's the article.  

My abstract comes from a picture of a lemon with the Flaming Pear Flood Filter applied. 

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