The Earth had a close meeting this morning when the Asteroid 2019 OK spent at 1:22 GMT, at a speed of nearly 5,500 miles per hour. The nearest to Earth was less than 45,000 miles (72,500 km), a safe distance, but still much less than the distance between the Earth and the Moon.
Astronomers noticed only the cosmic rock in the last few days when the astronomers at the SONEAR Observatory in Brazil took it. Since it is so new, there are still many astronomers who are not sure from its orbit to its size, ranging from 57 to 130 meters.
While the Earth gets a few visitors to asteroids that buzzle nearer to the moon each year, this is the largest so far in 2019
those cosmic rocks whose paths come even distant from the orbit of our planet. NASA believes this is their main route to planetary defense and is accused by Congress of finding at least 90% of NEO 460 feet (140 m) or more. Asteroids smaller than this would probably not cause a magnitude catastrophe on the planet, although they could be very damaging, depending on where they hit. (16 km) across, if not larger, as long as the meteor flying over Chelyabinsk, Russia in 2013 is only 20 meters.
So if 2019 OK hit the Earth, it could have brought a lot of blow to every city that hit, but it would not be a world event. Experts predict that it will hit about 30 times the power of the atomic bomb that destroyed Hiroshima.
But the real consequences are vague because there is still uncertainty about how big the asteroid is. The large range, ranging from 57 to 130 meters, arises because astronomers can really measure just how bright the subject is. A brighter object may be at the lower end of the range, while the darker, less shiny target may be at the wider end.
NASA and other observatories often observe asteroids in the size of 2019 when they are much further away from Earth, giving more time to understand and, if necessary, preparing for a meteor strike. But in this case, the asteroid did not come close to the darkness of deep cosmos, but to the sun. objects when closer to the Sun.
Other similar objects may also slip from the Earth under the cover of light. But the bigger the asteroid is, the harder it is to hide, and NASA keeps your eyes open.