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21 Aug: moon & sun to align, cast 70mi shadow across N. America. Last total solar eclipse seen by entire US: 99yrs ago

By WcP.Scientific.Mind - Posted on 09 August 2017

Total Solar Eclipse

Lunar Eclipse: The moon appeared to turn red due to the way the reflected light is refracted in the Earth's atmosphere.

Blood Moon is sometimes used to describe 4 total lunar eclipses in a row.

People across North America will witness a rare total solar eclipse on 21 August.
The earth, moon and sun will momentarily align, casting a 70-mile wide shadow that will move across the US, from the west coast to the east coast. The millions of people living within this ‘path of totality’ – and the millions of others expected to travel to a location on the strip – will see a total solar eclipse, where the moon completely blocks out the sun, leaving the solar corona visible.
The last time the entirety of the US witnessed a total solar eclipse was 99 years ago.

Total Solar Eclipse 2017: When, Where and How to See It (Safely)
A total solar eclipse occurs when the disk of the moon appears to completely cover the disk of the sun in the sky. The moon orbits an average of 239,000 miles (385,000 kilometers) from Earth - just the right distance to seem the same size in the sky as the much-larger sun.
During a total solar eclipse, the disk of the moon blocks out the last sliver of light from the sun, and the sun's outer atmosphere, the corona, becomes visible. The corona is far from an indistinct haze; skywatchers report seeing great jets and ribbons of light, twisting and curling out into the sky.
"It brings people to tears," Rick Fienberg, a spokesperson for the American Astronomical Society (AAS), told Space.com of the experience. "It makes people's jaw drop."

Lunar Tetrad
The term Blood Moon is also sometimes used to refer to four total lunar eclipses that happen in the space of two years, a phenomenon astronomers call a lunar tetrad. The eclipses in a tetrad occur six months apart with at least six Full Moons between them (see image 2014–2015 lunar tetrad).

(unquote)

Photo courtesy bloglikes.com, The Independent, and iStockphoto.com/wrangel

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