[ad_1]
The world counts the days to attend one of the most fascinating shows of the year. Next Friday (27), a lunar phenomenon will be on the lookout for astronomers and curious: of reddish hue, the so-called "moon of blood" eclipse can be seen for one hour and 43 minutes – which l & rsquo; # 39; s gained the explanation of "the longest of the century."
This eclipse is known as the "blood moon" because the sun's rays curl as it flows through the atmosphere of the Earth just as the moon is in the shadow of the Earth. "The atmosphere works like a lens that bypasses the red and orange lights of the sun, giving the reddish color of this eclipse," says physics professor Daniel Rutkowski of the School of Engineering and Management Eseg.
This eclipse will last so long in the sky as it will cross the darkest part of the Earth's shadow, an area known as the Umbra. "It is there that no ray of light arrives, but it eventually happens because of the deviation of light from the atmosphere."
The moon will take 3 hours and 55 minutes to cross the entire shadow of the Earth, but it will only be visible for an hour and 43 minutes, "the longest eclipse of the 21st century," according to "Earth Sky ", a Texas public radio station specializing in astronomy. "The phenomenon of the 27 will be seen more clearly between Africa and the Indian Ocean," says Rutkowski
. But those in Europe, Australia and New Zealand will also have a special vision. "It's not all over the world that we can see: when the moon is born here in Brazil, it will already be eclipsed, reddish," says the physicist.
The last lunar eclipse occurred on January 31 of this year and became known as " eclipse of the blue superlate of blood ". The phenomenon lasted an hour and 16 minutes
The interest has increased
The physicist says that "the" blood moon "is a trivial event." "
He explains that the term" blood moon "appeared about 20 years ago and was eventually adopted even by the universities." It's a popular term: colleges end up ". use it to attract attention and teach something about it. "
A few days after the eclipse of the 27th, a new event will draw attention to the sky.March will be at 57 million kilometers from the Earth, the closest position to our planet in the last 15 years.
Want to photograph the "blood moon"? See the tips
The first trick to film the "moon" " is to use the largest or greatest possible zoom lens on your camera or mobile phone Professionals use 300mm and 400mm lenses and can even rely on a duplicator, which reduces even more angle of view, which makes the i impression is getting closer.
You will also need a tripod. Long lenses or zooms usually require that the camera or the device does not experience any jerk or movement, even minimal. When this happens, the image is blurred and the moon looks like a white dot in the photo. The tripod also helps sharpen the picture: a small arm movement or a step forward or backward can focus the picture.
It is also important to measure the light as accurately as possible. In the frame to photograph the Moon, we have a large dark part in the frame, and this, almost always, tells the cameras the need for more light. But, in fact, they do not need it because the moon is lighter than the bottom. We can photograph several times and see when the details of the Moon become visible.
It's a good idea to try a composition with several elements, such as buildings, trees, statues.
What are shooting stars?
[ad_2]
Source link
