File:Collimator telescope.JPG

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English: Collimator telescope used to determine the "base point" for the Meridian circle measurements in the Meridian hall of the Helsinki observatory.
Suomi: Kollimaattorikaukoputki jonka avulla on määritetty meridiaankoneen mittausten "nollapiste" Helsingin observatorion Meridiaanisalissa.
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Author MKFI
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current19:41, 12 January 2013Thumbnail for version as of 19:41, 12 January 20135,184 × 3,456 (11.06 MB)MKFI (talk | contribs){{Information |Description ={{en|1=Collimator telescope used to determine the "base point" for the Meridian circle measurements in the Meridian hall of the Helsinki observatory.}} {{fi|1=Kollimaattorikaukoputki jonka avulla on määritetty meridiaan...

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