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This combination photo shows the different stages of the bmoon and supermoon during a total lunar eclipse in Los Angeles, Sunday, Jan. 20, 2019. (Ringo H.W. Chiu, The Associated Press)

The so-called Super Blood Wolf Moon slips into Earth's dark umbral shadow during a total lunar eclipse over Angel de la Independencia in Mexico City on January 20, 2019. - An unusual set of celestial circumstances comes together Sunday for skywatchers in Europe, Africa and the Americas, where a total lunar eclipse may be glimpsed, offering a view of a large, red Moon. (Alfredo Estrella, AFP/Getty Images)

A U.S. Flag in downtown Washington flies in front of the moon during a lunar eclipse, Sunday, Jan. 20, 2019. The entire eclipse will exceed three hours. Totality - when the moon's completely bathed in Earth's shadow - will last an hour. Expect the eclipsed, or blood moon, to turn red from sunlight scattering off Earth's atmosphere. (J. David Ake, The Associated Press)

A super blood wolf moon eclipse is seen from Littleton at 10:12 p.m. Mountain Standard Time on Jan. 20, 2019. (Eric Lutzens, The Denver Post)

The Super Blood Wolf moon is visible in the sky from Red Rocks Amphitheatre on Jan. 20, 2019 in Golden. The unusual event drew crowds of people trying to take photographs, enjoying the long lunar eclipse or simply howling at the moon once it went into totality. (Helen H. Richardson, The Denver Post)

The Super Blood Wolf moon is visible in the sky from Red Rocks Amphitheatre on Jan. 20 in Golden. The unusual event drew crowds of people trying to take photographs, enjoying the long lunar eclipse or simply howling at the moon once it went into totality. Totality lasted an hour and a minute.(Helen H. Richardson, The Denver Post)

This is a composite of 27 images of the Super Blood Wolf moon as it goes from being a full moon into the full lunar eclipsed moon as it rises over Red Rocks Amphitheatre on January 20, 2019 in Golden, Colorado. The unusual event drew crowds of people trying to take photographs, enjoying the long lunar eclipse or simply howling at the moon once it went into totality. Totality lasted 1hour 1minute. Supermoons, in general, are rather common said John Keller, director of the University of Colorado Boulder's Fiske Planetarium. But it's only about once a decade when the supermoon lines up with the lunar eclipse, which creates the blood-red effect. (Photo by Helen H. Richardson/The Denver Post)