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heliometer |
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heliometer [‚hē·lē′äm·əd·ər] (optics) A split-lens telescope used to measure the sun's diameter as well as small distances between stars or other celestial bodies. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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