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Planet nine from outer space?

Discussion in 'Personal' started by lanokia, Jan 20, 2016.

  1. lanokia

    lanokia Star commenter

    Lanokia stop it with the space stuff ... no one cares!

    I care so No!

    LINK to article

    Astronomers at the California Institute of Technology announced Wednesdaythat they have found new evidence of a giant icy planet lurking in the darkness of our solar system far beyond the orbit of Pluto. They are calling it "Planet Nine."

    Their paper, published in the Astronomical Journal, describes the planet as about five to 10 times as massive as the Earth. But the authors, astronomersMichael Brown and Konstantin Batygin, have not observed the planet directly.

    Instead, they have inferred its existence from the motion of recently discovered dwarf planets and other small objects in the outer solar system. Those smaller bodies have orbits that appear to be influenced by the gravity of a hidden planet – a "massive perturber." The astronomers suggest it might have been flung into deep space long ago by the gravitational force of Jupiter or Saturn.
     
  2. lanokia

    lanokia Star commenter

    Poor Pluto... you'll always be number nine to me.
     
  3. grumpydogwoman

    grumpydogwoman Star commenter

    How can you have a planet nobody knew about? It's like driving up the M6 to Manchester and suddenly there's a whole new city off Junction 17.

    No.

    Also how can a planet be gaseous?

    Why are we so gullible?
     
  4. lanokia

    lanokia Star commenter

    Because it's a long way out and doesn't reflect sunlight so telescopes don't pick it up ... it's been worked out from gravitational anomalies.

    Jupiter? Saturn? Uranus [insert giggling if needed]? Neptune?
     
    ScotSEN and FrankWolley like this.
  5. nomad

    nomad Star commenter

    Jupiter, Saturn, Uranus, and Neptune are all gaseous, GDW.

    Hydrogen, along with helium, is the main ingredient of Jupiter's and Saturn's atmospheres. Deep in their atmospheres, the hydrogen turns into a liquid. Deeper still, the liquid hydrogen turns into a metal.
     
  6. nomad

    nomad Star commenter

    Pluto is a rock ice planetoid more like Europa, a satellite of Jupiter, than any of its neighbouring gaseous planets. Sadly, Pluto was considered the largest of the so-called KUIPER BELT objects until the latest discovery.
     
  7. grumpydogwoman

    grumpydogwoman Star commenter

    3rd rock from the sun????

    It has to be a rock. A planet is rocky. Made of rocks.
     
  8. lanokia

    lanokia Star commenter

    If you go by mass the rocky planets of the solar system are the exception... by 1:223
     
  9. Duke of York

    Duke of York Star commenter

    Regarding Uranus being gaseous, it's beans, cabbage, bran, cauliflower, broccoli, onions, prunes, raisins and brussels sprouts that are mostly the cause.
     
    ScotSEN and lanokia like this.
  10. nomad

    nomad Star commenter

    Yup. Mercury, Venus, Earth and Mars are the rocky or "terrestrial" planets.

    The others are gas.

    Honest, Guv!!
     
  11. cariadwch

    cariadwch Established commenter

    Where is curlysue? Is this planet Niribu that she warned us about?

    A gaseous planet may still have a rocky core. It is estimated that Jupiter has a rocky core that is about 14 times the size of the earth
     
    Last edited: Jan 20, 2016
    racroesus and lanokia like this.
  12. nomad

    nomad Star commenter

    Depends on your source.

    http://www.universetoday.com/47966/jupiters-core/
     
  13. Duke of York

    Duke of York Star commenter

    Down the hairdresser's I expect. Having a perm.
    [​IMG]
     
    ScotSEN likes this.
  14. cariadwch

    cariadwch Established commenter

  15. racroesus

    racroesus Star commenter

    She can't deal with it if it isn't classical marble.
     
  16. blazer

    blazer Star commenter

    If it is that big then it must have a very slow orbit. I mean really slow and at that distance the Sun's gravity will be extremley weak and so to stay in an orbit the planet's velocity would have to be very, very slow otherwise it's angular momentum would fling it off into deep space.
     
    BelleDuJour and lanokia like this.
  17. Mangleworzle

    Mangleworzle Star commenter

    It is the anti-earth, it hides behind the sun.
     
  18. lanokia

    lanokia Star commenter

    They're saying it's projected to have an orbit of 10,000 years.
     
  19. emilystrange

    emilystrange Star commenter

    a planet needs to orbit the sun, have enough mass to force it into a sphere, and enough gravitational influence to clear an orbital path. pluto doesn't have the second, and another of the dwarf planets is ovoid.
     
  20. grumpydogwoman

    grumpydogwoman Star commenter

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