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Today there is total eclipse of the Moon, and will be the longest of the century. Here is a complete guide to observe the phenomenon
Why is the Red Moon called?
They call it red, but in reality it's more ocher. The satellite of the Earth, which inspired poets and romantics of all generations, acquires that reddish color when, in the full moon phase, it crosses the shadow projected by the Earth, when it is dark. he interposes between him and the Sun. ] It is a total lunar eclipse. And it's the halo of the earth's atmosphere that, by spreading the surrounding sunlight, contributes to the red hue that colors it.
Why? Because the wavelengths of orange and red are less scattered than violets and arrive in greater quantities at the Moon.The different tones observed in a lunar eclipse also result from the saturation of the moon. 39, Earth's atmosphere, with dust from eg volcanic activity. weather phenomena. The greater the amount of dust in the atmosphere, the darker the eclipse and the color of the moon
What is a total lunar eclipse?
A total eclipse of the Moon is an astronomical phenomenon that occurs when the Earth is between the Sun and the Moon and the three are aligned. The Earth thus projects its shadow on the Moon, a phenomenon that occurs when the Moon, in phase of Full Moon, passes in its nodes or in its proximity. They are rarer than eclipses of the Sun . There can be three in a year, and there can be years without one.
Is it visible in Portugal?
Yes. When the moon is born on the horizon today, in Portugal – at 8:38 pm, Lisbon, at 8:47 pm in Porto, at 8:51 pm in Ponta Delgada and at 9:05 pm in Funchal – it will be completely eclipsed. that is to say entirely in the shadow of the Earth.
Therefore, to be able to see the phenomenon, one must be in a place where the horizon is completely free, without buildings, trees or any other obstacle .
Mars will also be exceptionally bright, as we have not seen since 2003, given its closest proximity to the Earth, in the orbiting dance of the two planets. Saturn, Jupiter and Venus can be seen in the sky on the right side
How long does the phenomenon last?
The eclipse lasts about an hour and 45 minutes in total, but in Portugal it will be visible for about 50 minutes, because when the moon is born, it is already in total eclipse. The maximum point of the eclipse, when the Sun, the Earth and the Moon are perfectly aligned, occurs in Portugal at 21.22 . At 22:14, the Moon begins to emerge from the shadow, the whole area.
It is the longest of the century with a duration of one hour and 45 minutes, two minutes longer than any others that have occurred since 2000, or which will still occur until 2100. The two more minutes have to do mainly with questions of geometry: in its turn by the sky, the Moon passes exactly in the center of the Earth's shadow
where can we see the eclipse in Portugal?
Where there is a clear horizon, from the moment the Moon is born. But if you want to company, you can join the Porto Planetarium – Centro Ciência Viva and the Institute of Astrophysics and Space Science (IA), which organize an observation session at the Center d & rsquo; Environmental Education of Quinta do Covelo, in Porto. The activity starts at 22:00
On the terrace of the Teatro Romano, in Lisbon, the IA also promotes a session,
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