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|Tour guide to 1/20/19 total lunar eclipse...
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|Author:||crossquad [ Thu Jan 17, 2019 11:32 pm ]|
|Post subject:||Tour guide to 1/20/19 total lunar eclipse...|
https://www.skyandtelescope.com/observi ... r-eclipse/
If you're adept at comparing full Moon sizes, examine the Moon during the eclipse. Does it appear larger than normal? In fact it is! Perigee, when the Moon is closest to the Earth, occurs only about 14 hours after maximum eclipse. That makes this a supermoon, defined as a full Moon that comes within 90% of its closest approach to Earth. The average angular diameter of the full Moon is 31 arcminutes, but during the eclipse it will be 2.2 arcminutes wider
|Author:||lbt [ Mon Jan 21, 2019 8:45 pm ]|
|Post subject:||Re: Tour guide to 1/20/19 total lunar eclipse...|
Yeah, the moon was shining. Then, suddenly it was no longer shining. A quick change from the full moon to the new moon.
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