![]() At first, the moon's limb may seem to vanish completely inside of the umbra, but much later, as it moves in deeper you'll probably notice it glowing dimly orange, red or brown. The umbra is much darker than the penumbra and fairly sharp-edged.Īs the minutes pass, the dark shadow appears to slowly creep across the moon's face. The partial phases of the eclipse begin the pace quickens and the change is dramatic. A small dark scallop begins to appear on the moon’s left-hand (eastern) limb. Moon enters umbra - The moon now begins to cross into Earth's dark central shadow, called the umbra. Just before the moon begins to enter Earth's dark umbral shadow, the penumbra should appear as an obvious smudge or tarnishing of the moon's left portion.ģ. This will become increasingly more and more evident as the minutes pass the shading appearing to spread and deepen. Start looking for a very subtle light shading to appear on the moon's left portion. Penumbral shadow begins to appear - Now the moon has progressed far enough into the penumbra so that it should be evident on the moon's disk. For about the next 50 minutes the full moon will continue to appear to shine normally, although with each passing minute it is progressing ever deeper into Earth's outer shadow.Ģ. We must wait until the penumbra has reached roughly 70 percent across the moon’s disk. You won't see anything unusual happening to the moon - at least not just yet.Įarth's penumbral shadow is so faint that it remains invisible until the moon is deeply immersed in it. Although the eclipse begins officially at this moment, this is in essence an academic event. The penumbra is the pale outer portion of Earth's shadow. Moon enters penumbra - The shadow cone of the Earth has two parts: a dark, inner umbra, surrounding by a lighter penumbra. But many will, and those who know what to look for have a better chance of seeing it!ġ. Probably not all of those mentioned will occur, because no two eclipses are exactly the same. Supermoons are more common - they typically occur several times a year.This chronology includes some of the things you might expect to see. In the past 10 years, there have been just nine total lunar eclipses. ![]() ![]() The biggest draw of this celestial event is that a supermoon and a total lunar eclipse are occurring simultaneously. The moon's red hue is caused by red-orange light refracted through Earth's atmosphere and can appear even redder if there are more clouds or dust in Earth's atmosphere, according to NASA. This will be the first total lunar eclipse since 2019. Why it's "blood": On Wednesday morning, the moon will also appear blood red as it aligns with the sun and Earth and passes fully into Earth's shadow, or umbra. ![]() According to The Old Farmer's Almanac, the name is a reference to the flowers that are blooming in May and has been attributed to Native American, Colonial American and European sources. Why it's "flower": Full moons that occur in May are sometimes known as flower moons. When a full moon reaches the point closest to our planet on its elliptical orbit, it's called a supermoon, or perigee-syzygy, and appears larger than usual in the sky. Why it's "super": The shape of the moon's orbit around the Earth is not a perfect circle, but an oval. ![]()
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