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  • …o comets, bright as moons, separated from one another." Some historians of astronomy believe that it is one of the first descriptions of a cometary nucleus frag …behind the illuminated part of the Moon and two crescents break up in the sky. In this case:
    4 KB(429个字) - 2019年10月8日 (二) 06:32
  • (A) Sky&Telescope (B) Astronomy Now
    7 KB(192个字) - 2022年3月9日 (三) 19:56