By about 1:15am EST Tuesday morning, the moon will begin to move into the Earth's outer shadow, or penumbra. You will need a telescope to really see this portion of show.
By about 1:33am EST Tuesday morning the moon will begin to enter the Earth's inner shadow, or umbra. This is when the moon begins to enter full eclipse. It will take about three hours for the moon to completely pass through the umbra, so during this time the moon will appear to be a coppery dark orange color, or a dark red shade.
The moon will clear Earth's umbra by a little after 5:00am EST Tuesday morning. At that point the moon will look normal once again.
The December solstice will occur at 23:38 (or 11.38pm) Coordinated Universal Time (UTC) on December 21, 2010. It is also known as the winter solstice in the northern hemisphere and the summer solstice in the southern hemisphere due to the seasonal differences.
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