Helsinki Observatory

Helsinki Observatory sits atop Tähtitorninmäki Hill and houses two 0.33-meter refractor telescopes mounted side by side. One telescope is configured for visual observation while the other is equipped for taking photographs of celestial objects.

The site was completed in 1834 through a partnership between architect Carl Ludwig Engel and professor Friedrich Wilhelm August Argelander. Its design influenced how observatories were built across the continent and set a standard for astronomical facilities.

The building displays exhibitions about space exploration and astronomical discoveries, serving as a learning destination for school groups and visitors. People come here to understand the night sky and how astronomers study distant stars.

The facility opens Thursday afternoon through evening and Friday to Sunday midday to late afternoon at Kopernikuksentie 1. Visitors should check conditions beforehand since weather affects observation opportunities, and the hilltop location means you climb to reach the entrance.

Under this historic roof sits the Centre for Astronomy, offices of the Ursa Astronomical Association, and the University Almanac Office all together. This arrangement makes it a rare hub where research, education, and astronomical administration work side by side.

Location: Helsinki

Operator: Helsingin yliopistomuseo

Opening Hours: Thursday 12:00-20:00; Friday-Sunday 12:00-16:00

Phone: +358294124244

Website: https://observatorio.fi

GPS coordinates: 60.16198,24.95168

Latest update: December 12, 2025 14:23