http___metro-portal.rtl.hr_ogroman-asteroid-prolece-kraj-zemlje-19-travnja_104377_1.xml
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On April 19, a relatively large near-Earth asteroid will fly past safely. Scientists have made it clear that there is no possibility for it to collide with our planet. The asteroid, 2014 JO25, discovered in May 2014, will fly past at a distance on 1.8 million kilometers. This is approximately 4.6 times the distance between Earth and the moon. Anyhow, this will be a very close approach for an asteroid of this size. Astronomers discovered this at the Catalina Sky Survey near Tucson, Arizona. The space agency reported that, this asteroid is roughly 650 meters in size. Also, its surface is about twice as reflective as that of our moon. Although the trajectory of the asteroid is well known, scientists are yet to discover its physical properties. During the night of April 19, it will be visible as it is approaching Earth from the direction of the sun. One can see it for the next consecutive days with the help of small optical telescopes. Even though small asteroids pass within this distance of Earth several times a week, this upcoming close approach is the closest by any known asteroid of this size. The last known closest approach is that of asteroid Toutatis. It was about 3.1-mile asteroid, which approached within about four lunar distances in September 2004. The April 19 encounter will provide an opportunity to study this asteroid. The encounter is the closest for this asteroid for at least the last 400 years. And interestingly, it will be its closest approach for at least the next 500 years. In addition to this, on April 19, the comet PanSTARRS will make its closest approach to Earth, at a very safe distance of 175 million kilometers.
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Ogroman asteroid proleće kraj Zemlje 19. travnja Kada bi nas asteroid ovakve veličine udario došlo bi do globalne katastrofe jer bi sam udar oslobodio energiju od 16 100 megatona, što je kao i 1,5 milijuna bombi bačenih na Hirošimu Asteroid imena 2014-JO25, širok otprilike 650 metara, proći će kraj Zemlje u srijedu 19. travnja. Asterorid će se kretati prema u Jupiteru te će od Zemlje biti udaljen 1,8 milijuna kilometara, gotovo pet puta dalje od Mjeseca. NASA tvrdi da nema razloga za brigu jer će asteroid proći dovoljno daleko od Zemlje. No, s obzirom na veličinu samog asteroida ne radi se o "jako velikoj udaljenosti", piše Astronomynow. Kada bi nas asteroid ovakve veličine udario došlo bi do globalne katastrofe jer bi sam udar oslobodio energiju od 16 100 megatona, što je kao i 1,5 milijuna bombi bačenih na Hirošimu. Asteroid koji je prouzrokovao izumiranje dinosaura bio je pet puta veći od 2014 JO2 asteroida. Asteroid 2014-JO25 je prije tri godine otkrio britanski astronom Ron Baalke u sklopu programa Catalina Sky Survey u Arizoni kojeg financira NASA. Idući put će nam se svemirsko tijelo približiti tek 2027. godine, kada nam se asteroid 199-AN10, širok 800 metara, približi na 380 000 kilometara, što je jednako udaljenosti Zemlje i Mjeseca.