File:Vertikaaliympyrä 2.JPG

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English: Vertical circle for measuring the distances of stars from the horizon in the Meridian hall of the Helsinki observatory. Made by John Newman in ca. 1820s.
Suomi: Vertikaaliympyrä tähtien korkeuksien mittaamiseen horisontista Helsingin observatorion Meridiaanisalissa. John Newmanin noin 1820-luvulla valmistama.
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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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current19:08, 12 January 2013Thumbnail for version as of 19:08, 12 January 20133,456 × 5,184 (11.73 MB)MKFI (talk | contribs){{Information |Description ={{en|1=Vertical circle for measuring the distances of stars from the horizon in the Meridian hall of the Helsinki observatory. Made by John Newman in ca. 1820s.}} {{fi|1=Vertikaaliympyrä tähtien korkeuksien mittaamiseen...

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