• The observer begins the telescope startup process around nautical twilight, preparing the telescope then adjusting the pointing and focus.

    观测者大概在民用晨昏蒙影开始启动望远镜然后望远镜指向目标焦距

    youdao

  • The observer begins the telescope startup process around nautical twilight, preparing the telescope then adjusting the pointing and focus.

    观测者大概在民用晨昏蒙影开始启动望远镜然后望远镜指向目标焦距

    youdao

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