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Danjon prismatic astrolabe |
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Danjon prismatic astrolabe [′dän·yən priz′mad·ik ′as·trə‚lāb]
(engineering) A type of astrolabe in which a Wollaston prism just inside the focus of the telescope converts converging beams of light into parallel beams, permitting a great increase in accuracy. 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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