Scientists Found a Planet Orbiting a Dead Star

Discussion in 'Science' started by HoundofHades, Dec 6, 2019.

  1. HoundofHades

    HoundofHades Member Past Donor

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  2. fmw

    fmw Well-Known Member

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    Current astromonical thinking says the Earth, which is not a white dwarf, will become a red giant that will envelop the Earth before it dies. There may be things orbiting it at that point, but it won't be the Earth. The Earth will no longer exist.
     
  3. garyd

    garyd Well-Known Member

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    Last edited: Dec 13, 2019
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  4. WillReadmore

    WillReadmore Well-Known Member

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    Really?

    In general, planets form from the mass that condenses to create a star.

    Is there some reason to believe that this planet didn't just develop by normal processes?
     
  5. garyd

    garyd Well-Known Member

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    Did you not read what I said. It is well know scientifically that sometimes during the formation of a solar system a planet will get 'booted' out of that system by gravitational forces. It seems to me rather more likely that a dead star would be more like to pick up a wonderer than for one of its erst while planets to survive it's death throes. But anything is possible.
     
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  6. FreshAir

    FreshAir Well-Known Member Past Donor

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    could be any of many reasons
     
  7. garyd

    garyd Well-Known Member

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    For more info read about rogue planets.
     
  8. WillReadmore

    WillReadmore Well-Known Member

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    I know rogue planets exist.

    However, star systems begin with a population of planets and it's not clear to me that all the forms of star death result in eliminating all those planets. The question seems to be one of whether retention of an existing planet is less likely than actually capturing one of these rogue planets - which hits me as low probability event.

    It hits me as a little like the highly unlikely event that there will be any star collision when the Milkey Way, with 150billion stars intersects the Andromeda galazy with its 1 trillion stars.

    The actual capture of a rogue planet would seem to be at least as unlikely - even if there are twoce as many rogue planets than there are stars. Such a capture would require similar velocity and a rare path for entry and capture. Yet, we see gigantic differences in velocity throughout our galaxy.
     
  9. garyd

    garyd Well-Known Member

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    Estimates, and that's all they are at this point, rogue planets being all but impossible to detect, exceed 1 billion. The types of star death that would leave any planet would seem likely to leave more than one if there was more than one to begin with.
     
  10. HereWeGoAgain

    HereWeGoAgain Well-Known Member

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    Here's a photo

    [​IMG]
     
  11. Blaster3

    Blaster3 Well-Known Member

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    who cares, our sun won't di for at least another 3 billion years, some say 5 billion... it will not effect us in any way, shape or form... humans will be extinct well before that happens
     
  12. Quasar44

    Quasar44 Banned

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