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Watch the total lunar eclipse live online; The moon must be completely covered

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Between the night of this Sunday (15) and the dawn of Monday, spectators from all over Brazil will be able to follow the first and only total lunar eclipse in 2022.

This means that the Sun, Earth and Moon will align and the Moon will pass into Earth’s shadow. The phenomenon can also be seen throughout South and Central America and parts of North America, Europe and Africa.

Alessandra Abe Pacini, a scientist with the University of Colorado Space Physics Group, explains that throughout the night, we will see the moon disappear with the shadow of the earth passing in front.

When the event comes to your totality (nearly 01:11 Brasilia time)and the shadow completely covers the lunar disc, the Moon will be reddish, because we will not have the direct incidence of sunlight on our natural satellite.

Total lunar eclipse over the beach in Santa Monica, California in 2021. — Photo: Ringo HW Chiu/ASSOCIATED PRESS

Total lunar eclipse over the beach in Santa Monica, California in 2021. — Photo: Ringo HW Chiu/ASSOCIATED PRESS

For this reason, the event is also known as “Blood Moon”.

“It’s the same phenomenon that makes the sunset red. It’s like the sunlight is filtered by our atmosphere and there’s this red that scatters the sunlight that falls on the moon,” he says.

According to the National Observatory, the The partial eclipse will begin at 11:27 p.m. (Brasilia time), when the disk of the Moon begins to darken. To 00:29 on the 16th begins the total eclipse and the coloring of the Moon will be every time more red.

The maximum of the total eclipse will be at 1:11. The Moon will be submerged in umbra (a region where there is no direct sunlight) until 01:54, when it will begin to leave for penumbra (point of transition from umbra to light ) and we will resume the observation of the partial eclipse and then again the penumbra”, explains the institute.

Blue light from the Sun spills out and red, orange and yellow (longer wavelength) light passes through, turning our Moon red.  — Photo: NASA Goddard Space Flight Center/Science Visualization Studio

Blue light from the Sun spills out and red, orange and yellow (longer wavelength) light passes through, turning our Moon red. — Photo: NASA Goddard Space Flight Center/Science Visualization Studio

According to NASA, the US space agency, the technical name for this is Rayleigh Scattering. The agency also says that the more dust or clouds in Earth’s atmosphere during the eclipse, the redder the moon will appear.

“It’s as if all the sunrises and sunsets in the world were projected onto the moon,” says NASA.

No special equipment is needed to observe the eclipse. The blood moon will be visible to the naked eye. However, using binoculars or a telescope can improve vision and the intensity of the red color, NASA explains. “A dark environment away from bright lights provides the best viewing conditions.”

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