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Kobe University Planet X Theory

news flash Associated Academic Press Release

Kobe University shows a planet which is believed to be in the outer reaches of the solar system. The researchers at Kobe University have said that their theoretical calculations using computer simulations lead them to conclude it was only a matter of time before the long-awaited "Planet X" was found.

Scientists at a Japanese university said Thursday they believed another planet up to two-thirds the size of the Earth was orbiting in the far reaches of the solar system. The researchers at Kobe University in western Japan said calculations using computer simulations led them to conclude it was only a matter of time before the mysterious "Planet X" was found.

"Because of the very cold temperature, its surface would be covered with ice, icy ammonia and methane," Kobe University professor Tadashi Mukai, the lead researcher, told AFP.

The study by Mukai and researcher Patryk Lykawka will be published in the April issue of the US-based Astronomical Journal.

"The possibility is high that a yet unknown, planet-class celestial body, measuring 30 percent to 70 percent of the Earth's mass, exists in the outer edges of the solar system," said a summary of the research released by Kobe University.

"If research is conducted on a wide scale, the planet is likely to be discovered in less than 10 years," it said.

Planet X -- so called by scientists as it is yet unfound -- would have an oblong elliptical solar orbit and circle the sun every thousand years, the team said, estimating its radius was 15 to 26 billion kilometres.

The study comes two years after school textbooks had to be rewritten when Pluto was booted out of the list of planets.

Pluto was discovered by the American astronomer Clyde Tombaugh in 1930 in the so-called Kuiper belt, a chain of icy debris in the outer reaches of the solar system.

In 2006, nearly a decade after Tombaugh's death, the International Astronomical Union ruled the celestial body was merely a dwarf planet in the cluttered Kuiper belt.

The astronomers said Pluto's oblong orbit overlapped with that of Neptune, excluding it from being a planet. It defined the solar system as consisting solely of the classical set of Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

The team noted that more than 1,100 celestial bodies have been found in the outer reaches of the solar system since the mid-1990s. "But it would be the first time to discover a celestial body of this size, which is much larger than Pluto," Mukai said. The researchers set up a theoretical model looking at how the remote area of the solar system would have evolved over the past four billion years.

"In coming up with an explanation for the celestial bodies, we thought it would be most natural to assume the existence of a yet unknown planet," Mukai said. "Based on our hypothesis, we calculated how debris moved over the past four billion years. The result matched the actual movement of the celestial bodies we can observe now," he said.

He was hopeful about research by Kobe University, the University of Hawaii and Taiwan's National Central University. "We are expecting that the ongoing joint celestial observation project will eventually discover Planet X," Mukai said.

From The Kobe Uni Website Here

Dr. Patryk Sofia Lykawka and Prof. MUKAI Tadashi of Kobe University have conducted a theoretical work on the origin and dynamical evolution of Trans-Neptunian objects (TNOs). The results strongly suggest the presence of a yet unknown massive planet in the Solar System. With the upcoming future sky surveys, we can expect the planet to be found within 5-10 years.

The first TNO was discovered in 1992 orbiting in a region known as the Edgeworth-Kuiper belt, located beyond Neptune's orbit. Today, more than 1,000 TNOs have been found. Surprisingly, several TNOs possess unusually large eccentricities and/or high orbital inclinations, which are larger than that expected from standard theory of planetary system formation. The Edgeworth-Kuiper belt has also revealed other intriguing features. Based on numerical simulations of the orbital evolution of TNOs during the last 4.5 billion years, Dr. Lykawka and Prof. MUKAI have shown that a hypothetical planet in a distant orbit beyond Neptune, so-called Planet X, could explain the origin of the complex orbital structure of TNOs, including those objects in peculiar orbits.

Planet X should have a perihelion distance of at least 80 AU (1 AU is approximately the mean distance between the Earth and the Sun), a semimajor axis of 100-175 AU, and an orbital inclination of 20-40°. The planet would take 1,000-2,300 years to complete an orbit around the Sun. Furthermore, the mass of Planet X is estimated at 0.3-0.7 times the Earth's mass. If Planet X is near perihelion approach at a distance of about 80 AU, it could appear as bright as Pluto, with an apparent 14.8-17.3 magnitude. Worth noting, under these circumstances the planet would be detectable by future dedicated surveys. The planet’s diameter would be 10,000-16,000 km, which is comparable to the size of the Earth. In summary, having the physical and orbital characteristics described above, Planet X would very probably fulfill the conditions of the IAU planet definition, and thus it would be considered a new planet in the solar system.

(The results of this research will appear in the Astronomical Journal, April issue, 2008.)

news flash Below are direct links to Harvard University Academic abstracts all with regards to Planet X eliptical orbit Hypothesis. To keep unbiased, we normally do not provide links.

Due to more then a thousand or so academia reference requests, we are providing these with the hope that folks can learn to access such resources on their own, not having to relay on a website to get "2nd Hand" information.

Some might not be current, sorry, I don't have time to check them all. At least you'll see how to research the current data on your own. Remember, everything you read on this site is bullshit. Please take our 3 minute critical thinking tutorial before continuing. You'll be glad you did.

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