Scientists reported today they finally have "good evidence" for Planet X, a true ninth planet on the fringes of our solar system
This artist's concept illustration, courtesy of Caltech/Robert Hurt shows a distant view from Planet Nine back towards the sun. AFP PHOTO/CALTECH/ROBERT HURT
Cape Canaveral: Scientists reported today they finally have "good evidence" for Planet X, a true ninth planet on the fringes of our solar system.
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The gas giant is thought to be almost as big as Neptune and orbiting billions of miles beyond Neptune's path, distant enough to take 10,000 to 20,000 years to circle the sun.
This artist's concept illustration, courtesy of Caltech/Robert Hurt shows a distant view from Planet Nine back towards the sun. AFP PHOTO/CALTECH/ROBERT HURT
This Planet 9, as the two California Institute of Technology researchers call it, hasn't been spotted yet. They base their findings on mathematical and computer modelling, and anticipate its discovery via telescope within five years or less.
The two reported on their research today in the Astronomical Journal because they want people to help them look for it.
"We could have stayed quiet and quietly spent the next five years searching the skies ourselves and hoping to find it. But I would rather somebody find it sooner, than me find it later," astronomer Mike Brown told The Associated Press.
"I want to see it. I want to see what it looks like. I want to understand where it is, and I think this will help."
Once it's detected, Brown insists there will be no Pluto-style planetary debate. Brown ought to know; he's the so-called Pluto killer who helped lead the charge against Pluto's planetary status in 2006. (It's now officially considered a dwarf planet.)
His colleague in this latest Planet 9 report, also from Caltech in Pasadena, is planetary scientist Konstantin Batygin.
"For the first time in more than 150 years, there's good evidence that the planetary census of the solar system is incomplete," Batygin said, referring to Neptune's discovery as Planet 8.
The two based their findings on the fact that six objects in the icy Kuiper Belt, or Twilight Zone on the far reaches of the solar system, appear to be influenced by only one thing: a real planet.
Brown actually discovered one of these six objects more than a decade ago, Sedna, a large minor planet way out there on the solar system frontier.
"This is a prediction. What we have found is a gravitational signature of Planet 9 lurking in the outskirts of the solar system,' Batygin said. "We have not found the object itself," he stressed, adding that the actual discovery when it happens will be "era-defining."
Added Brown: "We have felt a great disturbance in the force." Depending on where this Planet 9 is in its egg-shaped orbit, a space telescope may be needed to confirm its presence, the researchers said.
Or good backyard telescopes may spot it, they noted, if the planet is relatively closer to us in its swing around the sun. It's an estimated 20 billion to 100 billion miles from us.
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