20 Dec

Monday night will be the darkest day in 456 years….  North and Central America will be able to view a lunar eclipse this Monday night/Tuesday morning, December 21/December 22. 

This eclipse will fall on a winter solstice which has not happened for 456 years.   The winter solstice is when the Earth’s axial tilt is furthest away from the sun and is the shortest day of the year in the northern hemisphere. 

An eclipse of the Moon (or lunar eclipse can only occur at Full Moon, and only if the Moon passes through some portion of the Earth’s shadow.  Some people are surprised that the eclipsed moon is reddish but there is a reason for that.  some of the sunlight passes through the Earth’s atmosphere and is bent around the Earth and towards the moon.  The shorter wavelengths of light is scattered and only the longer orange and red wavelengths reach the moon.  It is usually just enough light to cast a coppery red hue on the Moon.







Partial eclipse starts:
Dec 20 10:33 p.m. Pacific Standard Time

Total eclipse starts:
Dec 20 11:41 p.m. Pacific Standard Time

Total eclipse ends:
Dec 21 12:53 a.m. Pacific Standard Time

Partial eclipse ends:
Dec 21 2:01 a.m. Pacific Standard Time


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