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1874 Transit of Venus in Isfahan   -  By: Babak A. Tafreshi

Transit of Venus is a rare astronomical phenomenon happens only twice in century. Between 17th and 19th centuries the observations of the transit was a unique way to measure Earth-Sun distance and make the first realistic estimates of the size of the Solar System. The 9 December 1874 transit of Venus made many expeditions to locations around the globe including a German expedition to Isfahan, Iran, where they left these two stone markings from their successful observation. The photo shows the stones in 2004 in the yard of Vank cathedral, Isfahan.


    Item Code: 102416

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