COSMOS – Astro Festival in the Round Tower

Between February 7 and March 21, Rundetaarn invites you to an astro festival in Christian IV’s stargazing tower on Købmagergade. Framed by an exhibition featuring spectacular photos by one of Denmark’s best astrophotographers, the program also includes scientific talks, concerts, special events, and other stellar moments for both children and adults—all with the cosmos in focus.

Events will be announced continuously on this page.

COSMOS Festival Program

Exhibition with Astrophotographer Jakob Arthur Andersen
February 7th – March 21st

Embark on a journey thousands of light-years into space as Jakob Arthur Andersen showcases his stunning images of the night sky and deep space in the Library Hall. With telescope and camera, he has spent countless hours capturing the wonders of our universe, the solar system, and the landscapes of the night. Experience his very best photographs—from the Milky Way to distant galaxies—at Rundetaarn.

Read more here.

Visit the Observatory
Tuesdays and Wednesdays, 6–9PM

Join our astronomers for a night of star and planet gazing. During the winter months the Observatory is open and manned every Tuesday and Wednesday evening from 18 to 21. No reservation is needed – the visit is included in your entrance ticket.

Please Note: Stargazing is not possible if the sky is overcast. The Round Tower cannot guarantee visible stars or planets if the weather does not permit.

If it is cloudy or overcast, our astronomers will still keep the Observatory open for visits and will in stead tell you more about the telescope and the old Observatory.

Read more here.

Mini Cosmos – Astro Evening for Families
February 13th, 6–9PM

Join us during winter break for Astro Evening for children and their adults, featuring special family access to the Observatory, fun activities in the Spiral Ramp, and a creative planet-making workshop.

Planet Workshop for Kids
February 15th and 16th, 10AM – 2PM

Color planets and create your own solar system at Rundetaarn’s creative drop-in workshop for children and their adults.

Read more here.

Women in Physics (KIF) Celebrate International Women’s Day at the Round Tower
March 8th 12:30 – 5PM

In collaboration with Kvinder i Fysik (Women in Physics), Rundetaarn invites you to a star-studded event in honor of International Women’s Day. Experience senior researcher Desiree Della Monica Ferreira, astrophysicist Anja C. Andersen and High5Girls as we shine a spotlight on women in astronomy and physics.

Read more and purchase tickets here.