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Jan 14, 2024 · A "blood moon" happens when Earth's moon is in a total lunar eclipse. While it has no special astronomical significance, the view in the sky is striking as the usually whitish moon becomes...
Blood Moon is a term for a red-colored Full Moon during a total lunar eclipse, or for four total lunar eclipses in a row. Learn why the Moon turns red, how often lunar tetrads occur, and the difference between Blood Moon and Blue Moon.
- 249 min
- Joe Rao
- The moon enters the penumbral shadow. The shadow cone of the Earth has two parts: a dark, inner umbra, surrounded by a lighter penumbra. The penumbra is the pale outer portion of Earth's shadow.
- Earth's penumbral shadow appears. Now, the moon has progressed far enough into the penumbra that it should be evident on the moon's disk. Start looking for a very subtle light shading to appear on the moon's upper left portion.
- The moon enters Earth's umbral shadow. The moon now begins to cross into Earth's dark central shadow, called the umbra. A small, dark scallop begins to appear on the moon's upper-left (northeastern) limb.
- The moon is 75% covered. With three-quarters of the moon's disk now eclipsed, the part of it that is immersed in shadow should begin to light up very faintly, similar to a piece of iron heated to the point where it just begins to glow.
Total lunar eclipses are sometimes known as blood moons because of the dramatic coloring caused by Earth’s atmosphere, which scatters light from the sun and brandishes it on the face of the...
Nov 8, 2022 · Often colloquially called a Blood Moon, a total lunar eclipse, happens as the full moon (in this case November's full Beaver Moon) moves into the deep umbral shadow of the Earth and...
- 1 min
- Jamie Carter
May 18, 2021 · When the Moon is at or near its closest point to Earth at the same time as it is full, it is called a “supermoon.” During this event, because the full moon is a little bit closer to us than usual, it appears especially large and bright in the sky.
May 27, 2021 · Stargazers in a number of countries have been treated to a rare Super "blood" Moon as the Earth's satellite turned orangey-red. Such an event happens only when the Earth, the Moon and the Sun...
