Asteroid grazes Earth 27 June 2019: An asteroid will "graze" the Earth tonight: "No risk of collision", according to a specialist.

The asteroid will grow to 6.7 million kilometers from the Earth, on the night of Thursday to Friday.

An asteroid the size of three football pitches will pass near the Earth in the night from Thursday to Friday. A distance that must be relativised because the asteroid will pass "more than six million kilometers from the Earth," said Philippe Henarejos, the editor of the magazine Sky & Space, this Thursday, June 27 at the micro info info.

Asteroid grazes Earth 27 June 2019


Advertisement


The distance that separates the Earth from this celestial object is therefore almost 17 times the distance that separates our planet from the Moon. So there is "no risk of collision with the Earth" for this time, also assured Philippe Henarejos. But the 2008 asteroid KV2, discovered in 2008, was still classified as a potentially dangerous asteroid by NASA.

This means that it passes near, but at the scale of the solar system. Astronomers count in astronomical units. An astronomical unit is the distance that separates the Earth from the Sun, that is 150 million kilometers. Tonight, the asteroid will increase to 0.045 astronomical units of our planet, more than six million kilometers. That's about 17 times the distance between the Earth and the Moon. Thus, this feature classifies it into the category of celestial bodies that come to "graze" the Earth, but there is no risk of collision with the blue planet, this time. On the other hand, it is an asteroid that passes frequently close to the Earth. It has an orbit that closes in less than a year, so it will come back next year and the year after, but not necessarily closer to the Earth. In the long run, you have to watch it because it might collide one day. I would add that we can hear a lot about this asteroid because it is going to graze the Earth on the anniversary of a collision that took place on June 30, 1908 over Siberia. This is called the Tunguska disaster.

Astronomers measure the trajectories and orbits that are frequently deflected by the full attraction of other celestial bodies, other asteroids or planets that revolve around the Sun. So even if we know the trajectory, it is impossible to project it to infinity, in the future. After a while the predictions will diverge from reality. For this reason, this observation must be made continuously and the probabilities of a collision with the Earth must be constantly re-evaluated. Of all known asteroids, as is, there is no fear to have.

This is a topic for reflection, especially at the European Space Agency where there are space missions that are planned to approach these asteroids and to experiment. For the moment, these are only science experiments, that is to say, we first observe and then draw conclusions about the possible future technological possibilities that would make it possible to deflect or destroy the asteroids that could one day threaten us. For now, the only thing we can do is observe and predict. We do not have the means to do anything to deflect an object that we would be sure would come directly to Earth. But observation is very important because the more we do, the more we will know upstream if the risk is important. And if the risk is known ten or twenty years in advance, it leaves time to plan a mission to act.