[ad_1]
A total lunar eclipse of almost four hours from beginning to end, the longest planned for the entire 21st century, will take place on July 27, coinciding with the full moon.
The total phase will last 1 hour and 43 minutes, during which the Earth's natural satellite will acquire a spectacular red or reddish color, popularly known as "blood moon".
Much of the eastern hemisphere of the Earth will see some or all of the eclipse
![Get ready for the longest total lunar eclipse of the 21st century (Photo : 1945) The entire eclipse will be visible from Africa, the Middle East and Central Asian countries. The eclipse will be visible from the east of South America when it ends, and from Australia when it begins. </p>
<p> Unlike solar eclipses, no special equipment is needed to observe lunar eclipses. These last events, which occur when the moon passes in the shadow of the Earth, can be seen safely at the naked eye, using telescopes or binoculars. </p>
<p> The moon turns bright red or reddish brown during eclipses, </p>
<p> This is because part of the sunlight that flows through the earth's atmosphere curls around the edge of our planet and falls to the surface of the moon. The Earth's air also diffuses more light of shorter wavelength (in colors such as green or blue); what remains is the longest wavelength, the most red end of the spectrum. </p>
<p> The total eclipse time will be 20.21 GMT on July 27, according to EarthSky.org. The total eclipse will last from 7:30 pm to 9:13 pm GMT </p>
<p> There will also be some time before and after when the moon is in the lightest part of Earth 's shadow, which is reflected in the light. call the penumbra. Including this twilight time, the eclipse will last 3 hours and 55 minutes. </p>
<p> What controls the duration of the lunar eclipse, it is the position of the moon when it crosses the moon. Shadow of the Earth, "he told Space Noah Petro of NASA's Goddard Center The darkest part of the Earth's shadow is called umbra. Umbra as a cone that extends from the Earth in the opposite direction of the sun, explains Petro. </p>
<p> The moon can pass through the cone, or pass through the middle, which [el medio] has a longer eclipse, "he said. "This time, the moon passes closer to the center of this cone, and so the eclipse is a little longer than the eclipse we had in January." </p>
<p> Also, the moon will be at a point farther from the earth along its orbit, EarthSky says. </p>
<p> This means that the moon will appear a little smaller in the sky and that it will take a little longer to cross the Earth's shadow. </p>
<p> <iframe width=](http://www.excelsior.com.mx/media/styles/imagen-embed-nota/public/inside-the-note/pictures/2018/06/27/preparate-para-el-eclipse-total-de-luna-mas-largo-del-siglo-2.jpg)
Excelsior
[ad_2]
Source link
