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Pogson scale |
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Pogson scale [′päg·sən ‚skāl] (astronomy) An index of brightness used in star catologs; it is the ratio of 2.512 to 1 between the brightness of successive magnitudes. 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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