September 26, 2022


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The giant flies towards the sun.  Scientists have confirmed its huge size

The giant flies towards the sun. Scientists have confirmed its huge size

Latest notes with Hubble Space Telescopeconfirmed that the greatest was discovered sinnerAs we have ever seen. Surface immensity It will take all of Paris.

Comet Bernardinelli-Bernstein (C/2014 UN271) It was discovered in 2010 by Pedro Bernardinelli and Gary Bernstein. They found this object in archival data collected under Dark Energy Survey in Chile. Over time, thanks to additional feedback made with Hubble Space Telescopeit was possible to confirm the possible size of the object.

Comet C/2014 UN271 has a diameter of about 129 kilometers, making it 50 times larger than such typical objects. According to UCLA Professor of Planetary Science and Astronomy, and one of the research authors, David Jewett, aforementioned comet It must be gigantic, as evidenced by its high brightness even from a distance.

Comet Bernardinelli-Bernstein is moving fast More than 35,000 kilometers per hour. Its journey towards the sun lasted more than a million years. to me NASA Closest to Earth Comet C/2014 UN271 It will be found only in 2031, when it will be 1.6 billion km from our planet, close to Saturn. Then it will come out of our solar system.

The main problem scientists faced was distinguishing the comet’s nucleus from the surrounding gas and dust. The comet is now very far from EarthSo that this problem can be solved visually. That’s why scientists invented a computer A model of a comet’s tail that matches images from the Hubble Space Telescope. They then compared their results with previous observations made using the Atacama Large Millimeter/ Sub-millimeter Array (ALMA) in Chile. All these data made it possible to determine the diameter of the core and its reflection coefficient. However, it turns out that The comet’s nucleus is darker than previously thought.

Astronomers’ calculations show that Comet Bernardinelli-Bernstein flies toward the Sun from the so-called Oort Cloud – The undiscovered space that lies On the edge of the solar system. Mega Comet It moves around the sun in an elliptical orbit. It takes about three million years to complete one cycle.

Interesting, at first Comet Bernardinelli-Bernstein It was considered a dwarf planet because its distinctive tail was not observed at the time. Comet Bernardinelli-Bernstein has a temperature About minus 211 ° C. In such conditions, sublimation of carbon monoxide occurs, which in turn contributes to the formation of a coma, that is, a characteristic tail consisting of gas and dust.

Finally, it should be noted earlier Comet C/2002 VQ94 gets the title of ‘biggest’which was observed in 2002. Its diameter was about 96 kilometers.

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