Astronomers Discover a Distant Solar System Object - 2015 TG387

Astronomers Discover a Distant Solar System Object - 2015 TG387

Becker says astronomers have only found a handful of objects in addition to The Goblin that point to the existence of Planet Nine, so there is considerable skepticism that it's really out there. It was discovered by a group of researchers working at the Carnegie Institution for Science, Northern Arizona University, University of Hawaii and the University of Oklahoma. This was referred to the lineup of the solar systems in which it is four biggest planets that include Saturn, Jupiter, Neptune as well as Uranus.

That's more than 2000 times the distance between the Earth and the sun.

Thousands - even a million - more such objects could be way out there orbiting the solar system, researchers said. As it travels along 99 percent of its orbit, 2015 TG387 is too far and too faint to be detected.

Measurements seem to show that The Goblin completes a full orbit around the sun once every 40,000 years.

They were discovered in a region known as the Oort Cloud - the extended shell of icy objects that exist in the outermost reaches of the solar system. It was originally spotted by the Japanese Subaru 8-meter telescope located atop Mauna Kea in Hawaii in 2015.

Dr. Brown, who is behind Pluto's demotion as a dwarf planet, is now leading the search for Planet Nine.

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But the really wonderful thing about the Goblin dwarf is its extremely long orbit. Since it's definitely outside the gravitational influence of the gas giants in our Solar System, the question becomes "What brought it into that orbit?" Planet X as it became known, is thought to be a sub-Neptune sized planet but with an orbit 20 times as large Neptune. Illustration by Roberto Molar Candanosa and Scott Sheppard, courtesy of Carnegie Institution for Science.

Astronomers have just announced, on Tuesday 2 October, have discovered a new dwarf planet in the course of their research to try to find the hypothetical planet X or Nine.

The research has been submitted to The Astrophysical Journal.®.

"These so-called Inner Oort Cloud objects like 2015 TG387, 2012 VP113, and Sedna are isolated from most of the Solar System's known mass, which makes them immensely interesting", Sheppard explained. It has an uncharacteristically elongated orbit as well, the inner planets in the Solar System have a more or less circular orbit. Its large orbit and slow movement allowed Sheppard and his team to study it for several years so they could properly understand it.

These data also helped to suggest the gravitational influence of an unknown planet, several times larger than the Earth. "We are only seeing the tip of the ice berg".

The Goblin has a long, elliptical orbit which takes it almost 70 times further from the sun than Pluto (Illustration: Roberto Molar Candanosa and Scott Sheppard/Carnegie Institution for Science)Why is the Goblin important? And it was named Planet Nine. That is, the planet is smaller than expected, darker than expected (dark as coal) and more distant than expected.

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