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Set aside a few minutes late Friday afternoon, July 27, to witness one of the rarest phenomena of astronomy. On that date, whoever looks at the sky will be able to see the longest total lunar eclipse of this century.
In Brazil, all regions can be partial witnesses of the phenomenon. "When the moon is born here in Brazil, it will have already appeared in other countries," says physicist Renato Las Casas, 65, a professor at the Federal University of Minas Gerais (UFMG) and coordinator of the group. of astronomy of the institution.
"At 3:24 pm (Brasilia time), the eclipse phase of partiality begins, at 4:30 pm, the whole process begins, then at 5:40 pm in Brazil, the moon is born, and it will be reddish at from 18h13 – when the second phase of lunar polarization will begin At 19h19 we will be in front of the second phase of the penumbra, ending the whole movement at 20h29 ", says the professor. In Minas Gerais, the process can be seen starting at 17:40
The eclipse will last, in total, three hours and 20 minutes, one hour and 43 minutes with the moon totally enveloped by the shadow of Earth. "The eclipse is very important for the studies, to confirm the data, and will be useful for the experiments.An eclipse occurs twice, at most three times a year.It will be the longest of the century, to note. If possible, still have a binocular to better appreciate, "says astronomer Bernardo Riedel, 77, former professor at the UFMG and head of instrumentation of the Serra da Observatory. Piedade
The eclipse. The lunar eclipse occurs when the Sun, Earth, and Moon align, causing the planet's shadow to project onto the satellite. The Moon dives into the central shadow of the Earth and appears as a reddish disc in the night sky. As the distances between Earth and Moon and Earth and Sun are large, and as the Moon moves through the shadow of the Earth, which is in the middle, it will be the longest lunar eclipse of the 21st century. the next day 27 will be particularly long by a coincidence: it occurs with the apogee, the farthest point of its orbit and, consequently, with a lower orbital speed.
In this way, the Moon will take longer to cross the umbra. shadow region that receives no light from any point of the source), causing the continuation of the eclipse. The greatest possible time for a total lunar eclipse is one hour and 47 minutes.
By the Globe
The lunar eclipse of this Friday will be partially visible in much of Europe, Asia, Australia, Africa, in southern North America and South America.
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