• Halley's comet, which reappears about every 75 years, is a 'short-period' comet from a different part of the Solar System called the Kuiper Belt.

    哈雷彗星大约75年会再现次,哈雷彗星个“短期彗星来自太阳系一个名为伊伯带的与众不同的部位

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  • The red circle is the orbit of a long period object like a comet. Note the object and its tail.

    红色一个类似彗星周期天体轨道注意一下这个天体尾巴

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  • A comet with an orbital period of less than 200 years is called a "periodic comet", of which the best known is probably Halley's comet, which orbits the Sun every 76 years.

    有着少于200轨道周期彗星称作“周期彗星”,其中著名可能要数哈雷彗星,每76年围绕太阳运转一圈。

    youdao

  • A comet with an orbital period of less than 200 years is called a "periodic comet", of which the best known is probably Halley's comet, which orbits the Sun every 76 years.

    有着少于200轨道周期彗星称作“周期彗星”,其中著名可能要数哈雷彗星,每76年围绕太阳运转一圈。

    youdao

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