Complex sentence: When the long summer nights reduced his observation time F. S. Archenhold would take his family to his summer house in Bansin where he worked on the magazines and papers that he published at the observatory.
Split into simpler sentences: When the long summer nights reduced his observation time F. S. Archenhold would take his family to his summer house in Bansin. Here he worked on the magazines and papers that he published at the observatory.