[ad_1]
In 2019, the death of the asteroid does not threaten us – he says Jarosław Juszkiewicz from the Planetarium and the Nicolaus Copernicus Observatory in Chorzów.
– I do not know where this year comes 2019. Closer to the Earth Apophis it will be in 2029, exactly in 10 years. And then it will be close, because it will exceed us the 35 thousand. kilometers. It's really close. Only that it's not extraordinary, says the scientist. He reviewed the list of observations of land-based exceedances from asteroids registered by NASA (National Aeronautics and Space Administration in the United States). ). – There are only several hundred items for the last year. On average, 10 asteroids appear per month. They are not so big how Apophis – I say it right away – but I look at the distances. NASA records fewer asteroids than the Moon (at 384,400 km from Earth). For example, last January, an asteroid flew at a distance of 60,000 km. km from us. Most flights are marked in red and that should worry us. Because that means we noticed something that happened to us. And many scientists think that if we encounter a major problem, we probably will not be able to see it because often the asteroids come from the Sun and we then see only when we will visit you. And it was the same for many asteroids – says Jarosław Juszkiewicz.
He speaks on a similar tone Dawid Barteczko of the astronomical austral observatory – AstroLab of Czernica. – From a mathematical point of view, hit the Earth through Apophis it is possible. From a mathematical point of view, it is also possible that someone leaves work to get a meteorite in their head. I can not minimize the fact that there is such a threat. This asteroid actually travels the solar system, but you have to take into account that the object has a length of 300 meters. A possible blow could take place in about 10 years, because it will then be close to the Earth. However, it must be taken into account that the confusion in the calculations of one centimeter in the flight path is millions of kilometers of divergence in space – he explains.
As Dawid Barteczko adds, even how Apophis will be close to Earth, we will not be able to accurately predict the change of trajectory of the flight of an asteroid through heavy celestial bodies how for example Jupiter. – We will not tell you exactly if Jupiter will direct the object 4 degrees left or right – he notes.
orbit Apophis has been worrying since the very beginning, ie from 2004 when it was discovered. Incidentally, he disturbing name – Apophis is an Egyptian goddess of darkness and fear. And from the beginning, he is considered an asteroid that will bring annihilation. – Indeed, with its dimensions: 300 meters long and about 15 meters in diameter, if it penetrated into the Earth's atmosphere at a relative speed of 8 km / s, we would have to face a much larger explosion than that of the hydrogen bomb triggered by the Russians in the 1960s. century. but – and it's but is important, in 2019 it is located 1/10 of the Earth's astronomical unit. Maybe it seems to someone close. And that's 15 million km. Therefore, there is nothing to fear for the moment. Most astronomers think that Apophis will approach the Earth in 2029 for 30 000 km and if it does not reach the Earth, the proximity of the Earth will change the course of its orbit, so that we will have no problem with it. This will go into a completely different circle of asteroids – says a scientist from the planetarium of Chorzów.
Asteroids, about which we know that they cross the Earth's orbit, we know about 2,000. Although approximately 400 to 500 have a diameter greater than 100 meters, they are very large objects. Most are particles, but even the fall of a 10-meter asteroid can cause serious damage, as was the case in Chelyabinsk in 2013. How did it happen that it was not noticed? – It was a 30-meter rock that no observatory could catch. The object was flying on the "night" side. Like that not shines with its own light, it was difficult to predict the impact of such a small rock on Earth – Dawid Barteczko explains.
However, the truth is also that every day in the world our globe drops several thousand tons of cosmic debris, which are considered shooting stars. – I think astronomers will look closely Apophis and they will follow the route of his flight, so we will have more and more accurate data. One thing is for asteroids and asteroids – it should not be ask if"But you should ask" when "because it happened many times in the history of our planet, which froze and became a sphere of liquid fire, and species disappeared and new species have been created, repeated clashes have changed the climate, and it is true that it will happen. but in two years, 20 or 200,000? He does not know it nobody – says Jarosław Juszkiewicz.
[ad_2]
Source link
