The new dwarf planet found at the edge of the solar system

The new dwarf planet found at the edge of the solar system

Orbits of a potential dwarf planet called 2017 and the Dwarf Planet Sedna

Tony Dunn

A potential dwarf planet has been discovered on the external arrival of our solar system, orbiting the front of Neptune. Its presence has challenges of existence of a hypothetical body known as Planet 9 or Planet X.

Siheo Cheng At the Institute for Advanced Princeton Study, New Jersey, and his partners found the matter, known as 2017 at 1201, as a wonderful area of ​​a stressful image of Chile astronomy.

The 2017 NGO201 are about 700 kilometers in total – large enough to qualify as a dwarf planet like pluto, with diameter about three times. The purpose is now about 90.5 astronomical units (AU) away from us, or nearly 90 times far from the ground as the sun.

Because 2017 average orbit in 201711 around the sun is larger than Neptune, it is known as a transunian object (TNO). It passes to the Kuiper Belt, a disc of items frozen to the outer solar system beyond the neptune orbit.

Researchers viewed more than 19 observations, taken for seven years in Canada’s telescope in France Hawaii, to know that the nearest 2017 of Sun – was 44.5 AU, similar to the pluto orbit. The farthest recovery from the sun is 1600 au, way out of the solar system.

This greater orbit can be a result of a meeting on a giant planet, releasing the candidate dwarf planet from the solar system, say researchers.

“It’s a cool discovery,” said Kevin Napier at the University of Michigan. Item goes outside the solar system that can afford it with other stars in the galaxy as fast as some planets in our solar system, he said.

Orbits of many serious tnos seem to be cluster in a specified orientation. This is translated as evidence that the solar system contains a ninth planet hidden in Oort CloudA wide cloud of ICYO rockers surrounding the solar system. The idea is that Planet 9 gravity pushes TNOS in their specific orbits.

But the orbit of 2017 NGO201 is not suitable for this pattern. “This thing is definitely a greater than observed clustering,” as a team member Disagreement at Princeton University.

Cheng and his companions are also the orbit simulations of the matter, and how it interacts with Planet 9. “In a hundred million years, and there is no planet X,” it’s napier. “Sure, this is not evidence in favor of Planet 9.”

But until there is more data, the case is not closed, says Cheng. “I hope Planet 9 still exists, because that is more interesting.”

The Dwarf planet candidate takes 25,000 years to complete an orbit, which means it only costs about 1 percent of it is about to see. “These things are hard to find because they are weak, and their orbits are long and the skin you can see when they are immediately on the Sun, and then they will see me again, and then they see me,” Napier looks right away.

That means there are hundreds of such things there. the Vera C. Rubin OfvivatoryDue to the end of the online, look into the deep space and can find a lot of things like this, which should tell us more about them – and if plotet 9 actually exist.

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