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What was the magnitude scale?

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The stars cataloged by Ptolemy (2d cent. AD), all visible with the unaided eye, were ranked on a brightness scale such that the brightest stars were of 1st magnitude and the dimmest stars were of 6th magnitude.

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Get more facts and information about magnitude . Or, view the full encyclopedia entry from The Columbia Encyclopedia, Sixth Edition.

Similar questions: How were the dimmest stars ranked? How were the brightest stars ranked? [ Hide these questions ]

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