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Astronomers question claim of super planet found at solarsystem's edge
Since the WISE satellite operates in the infrared, and has proven useful for
disproving the existence of planets closer (relatively speaking) to the Sun: http://www.gizmag.com/nasa-wise-planetx/31148/ Wouldn't the James Webb Space Telescope (which also operates in the infrared) be able to spot planets even farther out? If not the JWST, what would be the best type of astronomical instrument for spotting objects like the ones mentioned in the article cited in the OP (something build-able with today's technology)? |
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Astronomers question claim of super planet found at solarsystem's edge
Now there's this:
Mysterious Planet X Could Be the Ninth Planet In Our Solar System: "The researchers studied six small objects in the Kuiper belt and noticed their orbits funneled toward the sun in a very specific formation. The likelihood of this being a coincidence is slim to none. What researchers believe is that a new planet, unofficially dubbed "Planet X," is pulling these objects into its orbit. The theory is fairly radical. If true, it means that Planet X would be orbiting the Sun from a distance astronomers have never seen before. The celestial body is so far away, it takes 15,000 years for it to make one trip around the Sun. By comparison, Neptune, which has the longest known orbit around the sun, takes 164 years to complete." See: http://gizmodo.com/mysterious-planet...-so-1754018188 |
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Astronomers question claim of super planet found at solarsystem's edge
On Wednesday, January 20, 2016 at 10:14:13 AM UTC-8, wrote:
Now there's this: Mysterious Planet X Could Be the Ninth Planet In Our Solar System: "The researchers studied six small objects in the Kuiper belt and noticed their orbits funneled toward the sun in a very specific formation. The likelihood of this being a coincidence is slim to none. What researchers believe is that a new planet, unofficially dubbed "Planet X," is pulling these objects into its orbit. The theory is fairly radical. If true, it means that Planet X would be orbiting the Sun from a distance astronomers have never seen before. The celestial body is so far away, it takes 15,000 years for it to make one trip around the Sun. By comparison, Neptune, which has the longest known orbit around the sun, takes 164 years to complete." See: http://gizmodo.com/mysterious-planet...-so-1754018188 So, is this object the same as the "Gna" object transiting near Alpha Centauri?: http://metro.co.uk/2015/12/14/astron...ystem-5564737/ Or are these 2 separate finds? |
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Astronomers question claim of super planet found at solarsystem's edge
Here's Yet More Evidence for the Ninth Planet Hypothesis:
"The tiny planet called uo3L91 is so new it doesn't even have an official catalog name yet, let alone a fancy moniker picked from mythology. But it does offer something important for scientists: more evidence that a ninth planet is lurking in the far reaches of the solar system. This world uo3L91 has an orbit that seems to slingshot it out to some of the most distant reaches of our solar system before swooping back in. There are five other objects just like it. What makes it so special is that this family of objects, which includes Sedna and 2012VP113 (aka "Biden"), seem to point out in the same direction, something that Caltech astronomer and dwarf planet expert Mike Brown believes to be a giant ninth planet." See: http://www.popularmechanics.com/spac...-theory-orbit/ |
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Astronomers question claim of super planet found at solarsystem's edge
'Planet X' caused mass extinctions on Earth?:
"Planet X, a suspected ninth planet in our solar system, may have caused periodic mass extinctions on Earth, according to a new study. The yet undiscovered "Planet X" triggers comet showers linked to mass extinctions on our planet at intervals of approximately 27 million years, researchers said. Scientists have been looking for Planet X for 100 years. In previous work, researchers inferred its existence based on orbital anomalies seen in objects in the Kuiper Belt, a disc-shaped region of comets and other larger bodies beyond Neptune. According to Daniel Whitmire, from University of Arkansas in US, and his colleagues, as Planet X orbits the Sun, its tilted orbit slowly rotates and the planet passes through the Kuiper belt of comets every 27 million years, knocking comets into the inner solar system. The dislodged comets not only smash into the Earth, they also disintegrate in the inner solar system as they get nearer to the Sun, reducing the amount of sunlight reaching Earth. In 1985, a look at the paleontological record supported the idea of regular comet showers dating back 250 million years. Newer research shows evidence of such events dating as far back as 500 million years. The researchers believe that Planet X would be between one and five times the mass of Earth, and about 100 times more distant from the Sun. "What's really exciting is the possibility that a distant planet may have had a significant influence on the evolution of life on Earth," said Whitmire. The study was published in the journal Monthly Notices of the Royal Astronomical Society." See: http://www.deccanchronicle.com/scien...-on-earth.html |
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