资料来源 : pyDict

星群,三星符号

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Asterism \As`ter*ism\, n. [Gr. ?, fr. 'asth`r star; cf. F.
   ast['e]risme.]
   1. (Astron.)
      (a) A constellation. [Obs.]
      (b) A small cluster of stars.

   2. (Printing)
      (a) An asterisk, or mark of reference. [R.]
      (b) Three asterisks placed in this manner, [asterism], to
          direct attention to a particular passage.

   3. (Crystallog.) An optical property of some crystals which
      exhibit a star-shaped by reflected light, as star
      sapphire, or by transmitted light, as some mica.

资料来源 : WordNet®

asterism
     n 1: (mineralogy) a six-rayed star-shaped figure seen in some
          crystal structures under reflected or transmitted light
     2: (astronomy) a cluster of stars (or a small constellation)