File:PSM V58 D012 Position angle and distance of a double star.png

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English: Position angle and distance of a double star
Date
Source Popular Science Monthly Volume 58
Author Unknown authorUnknown author

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Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:PSM_V58_D012_Position_angle_and_distance_of_a_double_star.png

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1 November 1900Gregorian

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current18:25, 8 December 2016Thumbnail for version as of 18:25, 8 December 2016512 × 731 (26 KB)IneuwUser created page with UploadWizard