Wednesday , June 23 2021

Alert of NASA asteroids as three cosmic rocks moving over Earth



TRIO with asteroids will pass by the Earth in a few hours this weekend. The largest dimensions are 30 meters wide – more than double the standard city bus.

Asteroids regularly pass close to the Earth, so there is no reason to panic.

In fact, NASA has designated 10 "near Earth objects" as a "close approach" in November alone.

"When they orbit around the sun, objects close to the Earth can sometimes get close to Earth," the US space agency explained.

It is also important to remember that a "close approach" may not be as close as you think.

The closest asteroid approaches 0.00255 astronomical units – about 336,000 kilometers.

But the exciting thing is that the three will go past the Earth on Sunday between 1:00 and 6:00 in the morning.

The first asteroid to pass is called 2018 VS1, circling the Earth at 1:03 on Sunday, November 11.

It is believed that it is up to 28 meters wide and will fly at a distance of 1 392 756 kilometers – quite close in astronomical terms.

This asteroid is the fastest, moving at 10.61 kilometers per second in relation to the Earth's own velocity. The next flight will take place 16 minutes later at 1:19.

This applies to the 2018 VR1 asteroid, which is slightly wider at 30 meters in diameter.

NASA expects this asteroid to cross Earth at a slightly slower 9.28 kilometers per second, again relative to Earth.

But it will be much further away from Earth, at a distance of 5 million kilometers.

Finally, we expect the asteroid 2018 VX1 to take the closest approach to Earth at 5:26.

This asteroid will be the closest to the Earth of any asteroid in November, at a distance of about 336,000 kilometers.

It is the smallest of three, measuring from 8 to 18 meters. 2018 The VX1 is also the slowest in the trio, moving at a speed of 6.06 kilometers per second compared to Earth.

Unfortunately, it is difficult to see asteroids using a telescope because they are often very small and weak – with different levels of reflexivity.

The best method for amateurs is astrophotography, which involves taking several photos of the night sky.

You can then compare the images and then pay attention to the small objects that have changed their position.

The article originally appeared in The Sun and was reconstructed with permission.


Source link