Light travels in waves, and different colors of light have different physical properties. The same phenomenon that makes our sky blue and our sunsets red causes the Moon to turn red during a lunar eclipse. Why does the Moon turn red during a lunar eclipse? Here are some more skywatching tips for the month of May. The Moon will be in the constellation Libra. The whole Moon is in Earth’s penumbra, but again, the dimming is subtle. It will look as if a bite is being taken out of the opposite side of the lunar disk as before. If you want to take a photo, use a camera on a tripod with exposures of at least several seconds.Īs the Moon exits Earth’s umbra, the red color fades. Try binoculars or a telescope for a better view. The entire Moon is now in the Earth’s umbra. The part of the Moon inside the umbra will appear very dark. To the naked eye, as the Moon moves into the umbra, it looks like a bite is being taken out of the lunar disk. The Moon begins to enter Earth’s umbra and the partial eclipse begins. The Moon begins to dim, but the effect is quite subtle. The Moon enters the Earth’s penumbra, the outer part of the shadow. Watch on Facebook | YouTube | NASA Television | /live What can I expect to observe? UTC (May 16) Watch at one of the following locations and ask your lunar eclipse questions using #AskNASA on social media. NASA will feature livestreams of the eclipse from locations across the globe! We’ll also host an episode of NASA Science Live, from 11 p.m.
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