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Keywords from Image Description:
Komeetanetsij. en Comet seeker telescope with short focal length and relatively large aperture in the Meridian hall of the Helsinki observatory Made by Utzschneider und Fraunhofer in fi Komeetanetsijkaukoputki jonka objektiivin suurennos on pieni ja nkkentt suuri Helsingin observatorion Meridiaanisalissa Utzschneider und Fraunhoferin