![]() 21 will occur this time around because the moon will pass through the top portion of Earth's shadow. Lunar eclipses don't occur every month because the moon's orbit is tilted, "so usually when the moon is full, the Earth's shadow passes a little bit above or a little bit below it." That's why most months don't have a lunar eclipse. Around 11:44pm EST the night of January 20, the moon will succumb to a reddish, coppery color, a product of. On the night of January 20 and early morning of January 21, 2019, depending on your time zone, the Moon will be totally eclipsed for over 60 minutes. "There is a little less than one total lunar eclipse per year on average," Freeman said. "A blood moon is one of the few opportunities we have to see both the moon and the stars in the sky at the same time, since the moon is usually too bright!" How often does this sort of eclipse happen? "There are no precautions you need to take when observing a lunar eclipse, since the moon is never bright enough to hurt our eyes like the sun is," Freeman saidin a Jan. ET on January 20 (4:41 UT on January 21) and will last. Totality, or total coverage of the moon, will begin at 11:41 p.m. The thin black rings indicate the position of the moon as it moves through Earth's shadow. Learn what causes a lunar eclipse and how it gains its crimson coloring. The thick grey ring around it represents the outer portion of Earth's shadow, the penumbra. ![]() The red circle is Earth's darkest shadow, the umbra. This NASA graphic offers basic details about the Jan. ![]()
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