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warning System for dangerous approach of the Earth with asteroids ATLAS of the University of Hawaii in Manoa have discovered a new, hitherto unknown species of celestial bodies. It is a Trojan asteroid with comet tail writes Phys.org.

In our view the asteroids and comets are different types of small space bodies But astronomers are discovering an increasing number of so-called “crossovers” – the heavenly bodies cross type. At first, they seem to be asteroids, and then find the tail that is typical of comets.

the Proof is a new discovery system ATLAS, which detected a Trojan asteroid of Jupiter with sprouted cometophobia tail.

ATLAS is the NASA-funded project using wide-field telescopes to quickly scan the sky for asteroids that may pose a threat of collision with Earth. At the same time in the scanning area are other objects that are not dangerous for humans, but is of scientific value.

an Asteroid in orbit of Jupiter, were seen a year ago, and recorded it at the minor planet Center under the code 2019 LD2. A month later, researchers at the space allowed for the possibility that it is a comet. When ATLAS again caught the image of this heavenly body, it was marked by a weak tail of dust or gas. At the beginning of this year, the asteroid was behind the Sun and could not be seen from Earth. And so in April 2020, he again appeared in the field of view of ATLAS, and again, scientists have looked in it all the hallmarks of a comet.

of Particular interest to researchers is what makes this facility unusual – it moves in the orbit of Jupiter, like all other asteroids (this is confirmed by precise measurements from many different observatories), but never watched to this type of object left a tail of dust and gas, like a comet.

As the astronomers explain, Trojan asteroids follow the same orbit, and the planet, but are either 60 degrees ahead or 60 degrees behind in the orbit. Trojan asteroids of Jupiter revolve around the Sun, collected in two huge swarm, one a swarm rotates ahead of the (where you found 2019 LD2) and one Roy rotates behind her.

There is your Trojan asteroid and the Earth. Tens of Neptune. And Jupiter would be hundreds of thousands, they were captured on these orbits by the strong gravity of Jupiter billions of years ago. During this time, scientists believe, the entire surface ice should evaporate – so where does the trail of dust and gas?

So this asteroid must have a large amount of ice under its surface, scientists have guessed, and “comet” behavior LD2 2019 fits into this version.

May Jupiter captured him with another orbit relatively recently, and on the surface of the asteroid could still survive surface ice. Maybe from hitting another asteroid was exposed ice, hidden �� strata of rock.

the New observations should help to determine the exact nature of an unusual object.