Some earthlings were able to think of an amazing lunar eclipse, during which the star turned red for a few minutes overnight from Sunday to Monday.
The infrequent celestial sight made it possible to think of the Night Star losing its luster and gradually turning red.
The eclipse was fully visible in South America, Central America, and over the eastern part of North America.
This phenomenon occurs approximately twice a year, when the Sun, Earth and Moon are in perfect alignment and the Moon is in its full phase.
The star slips into the Earth’s shadow, which then blocks the sun’s rays and gradually loses its white glow.
But he doesn’t get out of it all: the Earth continues to send moonlight from the sun, the rays that take on a reddish tint through the process of “atmospheric refraction,” explains Florent Delively, of the Paris-PSL Observatory, to AFP.
“During an eclipse, the Earth can only illuminate the moon by re-emitting red rays,” the astronomer continues.
“It’s very interesting to see a bright white moon that turns red over the minutes,” he adds. The phenomenon visible with binoculars as with the naked eye can give “amazing images” if the weather conditions are good.
The next total lunar eclipse is scheduled for November 2022 in the central Pacific Ocean. In mainland France, the last date dates back to January 2019 and the next will not occur until 2029.
The lunar eclipse showed that the Earth was spherical “from ancient times,” assures the astronomer. “On the surface of the lunar disk, the boundary between the shadow and the part illuminated by the Sun is slightly curved: this is the projection of the Earth’s rotation.”
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