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An underground observatory

The ruin of Tycho Brahe’s underground observatory is one of the museum's highlights.

Here are the most original monuments of his compound on Ven. It was built in 1584 as a more weather-protected location of observation than the balconies at the castle Uraniborg which, until then, harbored Tycho’s instruments. Here, Brahe and his assistants performed the most precise measurements of the positions and movements of the universe up to that time. These were later the basis for Johannes Kepler’s revolutionary interpretation of our solar system.

Like Tycho Brahe’s other buildings Stjärneborg was also demolished. However, in the 20th century the remains were dug out and covered with a reconstruction of the original buildings above ground. Where the instruments once were are now scale replicas.

At this historic site, visitors can see a seven minute sound and light show depicting a night’s observations under Tycho’s direction.

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Latest updated by Josefin Garpvall