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| Keywords: Meridiaanisali 2.JPG en Meridian hall in Helsinki observatory designed for meridian and transit observations on positions of stars moving past the north-south meridian From front to back grand transit instrument vertical circle heliometer and meridian circle fi Helsingin observatorion Meridiaanisali pohjois-eteläsuuntaisen meridiaanin ohittavien tähtien paikkahavaintoja varten Etualalta taakse suuri ohikulkukone vertikaaliympyrä heliometri ja meridiaanikone own MKFI 2012-12-01 Collections of the Helsinki Observatory Historical astronomical instruments 2012 in Helsinki December 2012 in Finland Taken with Canon EOS 60D Taken with Canon EF-S 15-85mm F3 5-5 6 IS USM ImageNote 1 10 10 2050 3441 5184 3456 2 thumb ImageNoteEnd 1 ImageNote 2 3878 1771 446 1219 5184 3456 2 thumb ImageNoteEnd 2 ImageNote 3 3488 1892 486 1002 5184 3456 2 thumb ImageNoteEnd 3 ImageNote 4 2855 1771 618 1037 5184 3456 2 thumb ImageNoteEnd 4 Files by User MKFI | ||||
