It turns out that a giant asteroid emitting 10 times the energy of the atomic bomb would close to the earth if it collided


ByHubble ESA

On January 9, 2017 (local time), we found that an asteroid "AG 13" with a diameter of 15 meters to 34 meters was approaching the Earth. It made more than 1,000 injured in Russia in 2013Meteorite fall of Chelyabinsk provinceAlthough it is seen as the same size meteorite, it has already been announced that there is no worry of falling to the earth because it is already away from the earth.

Giant asteroid flies by Earth closer than the moon - Business Insider
http://www.businessinsider.com/asteroid-flyby-nearer-than-moon-2017-1

Sneaky asteroid spotted whizzing between Earth and moon - CNET
https://www.cnet.com/news/asteroid-2017-ag13-passes-earth-moon-slooh/

The gigantic asteroid "AG 13", which is equivalent to the size of a 10-story building, is searching for a celestial body (NEO) near EarthCatalina Sky SurveyIt was discovered by. The size of the AG 13 is presumed to be between 15 meters and 34 meters in diameter, and AG 13 who was flying at the speed of 16 km / sec was rapidly approaching from the earth to about 120,000 miles (about 190,000 km). This is less than half of the distance from the earth to the moon, which means that it was flying closer than the moon which is closest to the earth.


Fortunately there was no situation where AG 13 rushed into the atmosphere, but if an asteroid made of porous rock of 34 meters rushed into the Earth's atmosphere at a 45 degree angle, the atomic bomb attacked Hiroshima When we release more than 700 kilotons of energy equivalent to 10 times, we can see the asteroid collision simulator "Impact: Earth!It is speculated by.

However, since the explosion will occur at 16000 meters above the earth, it is expected that if the AG 13 entered the Earth it would have had no major impact on the earth. On the other hand, live broadcasting of AG 13's flybySloohAs AG 13 is about the same size as the meteorite in Chelyabinsk province in 2013, it is said that buildings and windows could be damaged if they rush into the earth.

BySandia Labs

According to Purdue University which developed Impact Earth!, The risk that an asteroid of this size will collide with the Earth will come at a period of about 150 years. NASA's NEO search programNear-Earth Object ProgramPredicts that there are 38 kinds of asteroids' rapidly approaching like AG 13 in January 2017 alone. The fact that the approach of AG 13, which releases nuclear bomb level energy when colliding with the earth, has not been confirmed until just before is found in NASA's nearby astronomical telescope NEOCam "NEOCam" to discover the approach of asteroids It is difficult to say. This is because NEOCam is designed to detect cosmic rocks over 140 meters in diameter and further improvements are required to detect smaller asteroids such as AG 13.


In addition, we are tweeting GIF animation that Slooh can understand about what kind of orbit the AG 13 was approaching the Earth.

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in Note,   Science, Posted by darkhorse_log