Almost, But Not Quite   Leave a comment

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How many of you look forward to gazing at the moon and witnessing one of Nature’s Greatest Wonders, such as the lunar eclipse pictured above? They happen twice a year, about two weeks apart from a solar eclipse. It’s the dance the moon and the sun do, shading the earth in a few places, and giving us a fabulous show.

But on August 18, something odd’s going to happen. The Sun, Moon and Earth will be closely aligned that day, but their shadows will not meet. It’s as if they’re all flirting with each other, yet don’t quite know whom to choose. So they hold off a bit.

Then, one month later, the Moon gets its chance with a Penumbral eclipse (also, not quite total, but almost), crossing two dates, on September 16 & 17. But here’s the thing with a Penumbral eclipse: you might not notice anything. In fact, most people see a normal full moon. A keen eye will notice it’s a bit darker, but only just. See, this kind of eclipse happens when the Moon passes through the faint part of the Earth’s outer shadow. The Sun, Moon and Earth are imperfectly aligned, so they can’t do what naturally should come to them – an eclipse – so they go through the motions and orbit away.

Sandwiched between those two almost lunar events is an Annular solar eclipse on September 1. That, too, is an almost-but-not-quite event, with the Moon standing a hair’s breadth too far from the Sun to block its light entirely, but enough to cast a pretty decent shadow and darkening things in its path. It’s kind of like going to the movies and someone with an enormous head sits directly in front of you. You can’t really make out the whole film, but at the screen’s edges you see a tidbit of the action. What a viewer will see is a “ring of fire” around the edges of the moon. The sky does darken and if you glance at the sun (eyes protected with a filter!), it’ll look pretty darn cool.

So look out, folks! Or you might miss something…

Posted August 6, 2016 by seleneymoon in Eclipses, Moon, Nature, The Sun

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