File : Ancient Beijing observatory 14.jpg

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Original file ‎ (573 × 727 pixels, file size: 85 KB, MIME type: image/jpeg )

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A large frame quadrant at the Beijing Ancient Observatory, constructed in 1673
Description Quadrant Altazimuth in Beijing Ancient Observatory 象限?（地平??）
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Author user:kallgan
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Public domain I, the copyright holder of this work, release this work into the public domain . This applies worldwide.
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Date/Time Thumbnail Dimensions User Comment
current 11:19, 12 August 2013 Thumbnail for version as of 11:19, 12 August 2013573 × 727 (85 KB) Soerfm ( talk | contribs ) Crop, contrast
12:11, 27 November 2006 Thumbnail for version as of 12:11, 27 November 2006600 × 800 (61 KB) Kallgan ( talk | contribs ) {{Information |Description=Quadrant Altazimuth in Beijing Ancient Observatory 象限?（地平??） |Source=self creation |Date=May 16 2006 |Author= user:kallgan |Permission={{PD-self}} |other_versions= }}

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