Why will the moon be red during the longest eclipse of the century?

CITY OF MEXICO.

During the lunar eclipse the longest of the 21st century, with a total of 102 minutes, which can be observed on July 27, the Earth's natural satellite will acquire a color red or reddish popularly known as "blood moon"

The moon turns bright red or reddish brown because part of the sunlight that crosses the curves of the Earth's atmosphere around the edge of the Earth and falls to the surface of the moon. The Earth's air also diffuses more light of shorter wavelength (in colors like green or blue) . Therefore, what remains is the longest wavelength, the most red end of the spectrum.

Much of the eastern hemisphere of the Earth will see the eclipse. The phenomenon as a whole will be visible from Africa, the Middle East and the countries of Central Asia, and will be visible from the east of South America when it ends, and early Australia

Unlike solar eclipses no special equipment is needed to observe lunar eclipses . These latest events, which occur when the moon passes in the shadow of the Earth, can be seen safely directly to the naked eye, telescopes or binoculars.

To observe the phenomenon, the National Astronomical Observatory begins to move away from the contaminated areas. cities with lights or buildings that conceal the horizon in an easterly direction

Where to see the longest lunar eclipse of the 21st century?

One can observe the longest lunar eclipse of the 21st century, with a total of 102 minutes on July 27th and the Institute of Astrophysics of the Canary Islands (IAC , in the Spanish archipelago in the Atlantic) will broadcast live from Namibia through the sky-live.tv channel.

The live broadcast of this The total eclipse of Luna is carried out with the collaboration of the European project STARS4ALL and the HESS High Energy Observatory ] informed the IAC today by means of an official notice.

lunar eclipses occur when the Earth 's satellite passes through the shadow of the Earth, which does not happen every month, because the orbit of the Earth' s. Moon is inclined to that of the Earth-Sun (ecliptic)

Unlike solar eclipses the moles are visible from anywhere in the world, once the moon is above the horizon at the time of the eclipse, explains the Institute of Astrophysics of the Canary Islands.

On July 27 of this year, total lunar eclipse with the maximum centered in the Indian Ocean, according to data provided by NASA.

The entire phase of the eclipse will last 1 hour and 42 minutes bringing it will be the longest of the 21st century, started at 19:30 GMT and the moon will begin to eclipse (entering the shadow of the Earth) at 18:24

This will be the total lunar total eclipse of the century

It can be seen from South America, d & # 39; Europe, Africa, Asia and Oceania, and during all this time we can see that the Moon does not disappear but acquires a reddish tone.

The atmosphere of the Earth, which extends about 80 ki Lometers beyond the diameter of our planet, acts as a lens that diverts sunlight.

At the time, it effectively filters its blue components and lets only the red light that will be reflected by the satellite. Thus, the moon acquires the characteristic coppery radiance, adds the IAC.

After two years without total eclipses of the Moon in Europe, on July 27, it will be possible to see the Red Moon, and it will be necessary to wait another six months. to repeat the experience, in January 2019, comments in the statement Miquel Serra-Ricart, astronomer of the IAC

He added that in the show that will be made of Namibia the darkness produced by The eclipse will reveal objects only visible from the southern sky, such as Magellan's clouds.

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