NASA announces that an asteroid with a diameter of 1 km will approach the earth in January 2022, and is on alert as a potentially dangerous celestial body
NASA has announced that the asteroid '
Next Five Asteroid Approaches
https://www.jpl.nasa.gov/asteroid-watch/next-five-approaches
Huge asteroid will race past Earth at 43,000 miles per hour next month | Daily Mail Online
https://www.dailymail.co.uk/sciencetech/article-10358163/Huge-asteroid-race-past-Earth-43-000-miles-hour-month.html
NASA warns at least FIVE asteroids are heading toward Earth in January and one is the size of Big Ben
https://www.the-sun.com/news/4386745/nasa-five-asteroids-earth-january/
The asteroid '1994 PC1', which was reported to be approaching the earth this time, is an asteroid discovered by Australian astronomer Robert McNaught in 1994, and its size is Dubai, which is the tallest building on the earth. It is also 3280 feet in diameter, well above the Burj Khalifa.
According to NASA, the '1994 PC1' orbits the Sun in a cycle of about 1.5 years, about 120 from Earth at 21:15 GMT on January 18 (6:15 GMT). It is said that it will approach to a distance of 10,000 miles (about 1.93 million km). It is calculated that the '1994 PC1' will be so close to the Earth since 1933, and the next re-approach will be in 2105.
by NASA
'1994 PC1' is one of the Apollo-type asteroids that fly very close to the earth, and belongs to the same group as the asteroids that fell to Russia in 2013 and caused great damage to the country's Chelyabinsk Oblast.
Movie summary that shot the ridiculous moment of the meteorite that crashed into Russia --GIGAZINE
NASA is also announcing the 'Asteroid Watch Dashboard', which summarizes the five most recent celestial bodies of asteroids approaching within 7.5 million km from the earth, and ' 2021 YQ ' at the time of writing the article. ' 2021 YX ' ' 2014 YE15 ' ' 2020 AP1 ' ' 2013 YD48 ' has been reported.
The table below summarizes these sizes and the days and distances closest to the earth. Of the five, the closest distance is 1.74 million km, and the '2020 AP1' that passes closest to the earth is a large car size with a diameter of about 4 m, but the '2013 YD48' is about 104 m in diameter and is equivalent to a 30-story building. It is the size to do.
Asteroid name | size | Closest distance | Closest day |
---|---|---|---|
2021 YQ | 61m | 2.14 million km | January 5th |
2021 YX | 30m | 2.39 million km | January 5th |
2014 YE15 | 7m | 7.4 million km | January 6th |
2020 AP1 | 4m | 1.74 million km | January 7 |
2013 YD48 | 104m | 5.6 million km | January 11 |
According to NASA, all of the above asteroids are unlikely to fall to Earth in this approach, but especially the '1994 PC1' is wary of being a 'potentially dangerous asteroid' with a diameter of over 150m. It is said that it is doing.
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in Science, Posted by log1l_ks