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occulting disk |
Also found in: Wikipedia | 0.01 sec. |
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occulting disk [ə′kəlt·iŋ ‚disk]
(astronomy) A small metal disk placed in the focal plane of the eyepiece of a telescope, usually to cover a bright object in order to permit observation of a faint one. 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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