May - 01.05. All Saints - 01.11. Christmas Day - 25.12. New Year's Eve - 31.12. Visits can take place on different days.
Visits can take place on different days.
Visits can take place on different days. Each section of the ticket can be used by either one adult or two children. Planetarium Extra fee for the show, which takes place four times a day. Tickets can be bought at the information desk in the entrance hall. They are free of charge and in German language only.