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Nucleus (Comet Anatomy).

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Research Starters
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  • المؤلفون: Kennedy, Adrienne A.
  • المصدر:
    Salem Press Encyclopedia of Science, 2025. 2p.
  • الموضوع:
    Cometary nuclei
  • معلومة اضافية
    • الموضوع:
      Kuiper belt; Oort Cloud
    • نبذة مختصرة :
      The nucleus is the solid body of a comet. It is made primarily of ice along with dust and rocks. Comets orbit the sun and have existed since the formation of the solar system. Short-period comets come from the Kuiper Belt beyond the planet Neptune. Long-period comets come from the Oort Cloud far outside of Pluto’s orbit, about 5,000 to 100,000 astronomical units (AU) from the sun. One AU is about 93 million miles (150 million kilometers).