I visit the `Nation Observatory in Heringsdorf´
on Isle Usedom in year 2007

this 10inch Telescope is a construction from `Manfred von Ardenne´-
a 10inch Cassegrain 250/4500mm with a very good figure






I visit the `Nation Observatory in Heringsdorf´
on Isle Usedom in the year 2019 on March 24th again.




link to `Nation Observatory in Heringsdorf´

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© kfo48