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单词 star stream
释义

star stream

noun Astronomy
A systematic drift of stars in the same general direction within a galaxy.We measure the stars’ velocities and search for star streams from past galaxy mergers....
  • Researchers suspect that Sagittarius will one day resemble the star streams and clumps being reported Thursday.
  • Many astronomers believe that star streams such as Hercules - stars that move at the same velocity in a band or stream - are thought to be remnants of those mergers.
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更新时间:2024/12/23 19:57:07