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Is Pluto a Binary Planet?

astroengine writes "If the Pluto-Charon system were viewed in a similar way to binary stars and binary asteroids, Pluto would become a Pluto-Charon binary planet. After all, Charon is 12% the mass of Pluto, causing the duo to orbit a barycenter that is located above Pluto's surface. Sadly, in the IAU's haste to define what a planet is in 2006, they missed a golden opportunity to define the planetary binary. Interestingly, if Pluto was a binary planet, last week's discovery of a fifth Plutonian moon would have in fact been the binary's fourth moon to be discovered by Hubble — under the binary definition, Charon wouldn't be classified as a moon at all."

2 of 275 comments (clear)

  1. Now it makes sense by Megahard · · Score: 1, Offtopic

    The Death Star was so massive that when it orbited a planet it became a binary system.

    --
    I eat only the real part of complex carbohydrates.
  2. Re:IAU? Haste? No way. by qc_dk · · Score: 1, Offtopic

    You are very wrong. Almost no sects of Christianity believes that the bible is the literal truth and the word of God.
    The Pope, even, have stated that at least Genesis is allegory.

    There are even more moderate sects, like the state church of Denmark. Where there are priests who don't believe in God.
    Here's a quote from the priest Thorkild Grosbøll: "God belongs in the past. He is actually so old fashioned that I am baffled by modern people believing in his existence. I am thoroughly fed up with empty words about miracles and eternal life."