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CITY OF MEXICO
Tomorrow, July 27, the total eclipse of the longest Moon of the 21st century will be observed with a duration of 103 minutes in its phase of totality
This phenomenon occurs because the Earth interposes between the Moon which must be in its "full" phase and the Sun, so that the natural satellite fades little little like the shadow of the "blue planet"
In the eclipse of this Friday a redness on the moon will be observed, since the sun's rays will go through the atmosphere terrestrial, explained the chief of Astronomy and Science. The space of the Luis Enrique Erro Planetarium, Wilder Chicana Nuncebay
What we actually see in the color of the Moon must do essentially with some of the pollution of the Earth's atmosphere ", he said.] In an interview with Notimex, the astronomer explained that the duration of an eclipse fundamentally depends on the relationship between distances and the alignment of three participants: Earth, Sun and Moon.
According to the date, he says, the Moon will be found at the greatest distance from the Earth, and that in turn will be from the Sun. The shadow of the Earth, which is the one that really hits the moon, is vast and, being so big, the time at which the moon has to move in this whole area is larger.
event is possible because any extended object projects two types of shadows, threshold and half-light ; first is solid, while the second is slender and broad.
There are really two shadow cones projecting the Earth onto the Moon. When the Moon begins to enter the outermost cone, that is to say the dim light, it makes the first contact, here begins the penumbra phase of the eclipse, "explains Chicana Nuncebay
. complete at the gloom zone and begin to touch the phase of the shadow, the darkest part, it is where a reddish color is projected on the satellite, a stadium that is known as partial.
When the entire moon is introduced into the Umbra, we say that we are in totality. So, the bigger the main shadow, the longer the total eclipse will last, "he said.
So, from the beginning of the eclipse to its end, will take about six hours and as a reference, the physicist said that in the Canary Islands the phenomenon will begin at 18:18 hours and end at midnight.
This type of phenomenon also serves the scientific community to make observations and polls with which they can obtain information on the atmosphere, the degree of contamination and even on the ozone layer.
Because the total eclipse of the Moon will not be visible in Mexico, the Luis Enrique Erro Planetarium of the National Polytechnic Institute (IPN) is expected to project to the general public a simulation of the eclipse as if it were seen from the Canary Islands, at the end of each of the short films that are exposed in his dome. [19] 659003] acv
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