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asterism |
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asterism [′as·tə‚riz·əm]
(astronomy) A constellation or small group of stars. (optics) A starlike optical phenomenon seen in gemstones called star stones; due to reflection of light by lustrous inclusions reduced to sharp lines of light by a domed cabochon style of cutting. (spectroscopy) A star-shaped pattern sometimes seen in x-ray spectrophotographs. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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