Swedish Solar Telescope

The Swedish Solar Telescope is a solar observation instrument with a 98-centimeter refracting lens positioned at 2,360 meters elevation on La Palma. The facility uses advanced optical systems to capture detailed images of the sun's surface while benefiting from the clear mountain air.

The telescope was installed as a replacement for the earlier Swedish Vacuum Solar Telescope, marking a technological advance in solar observation. Its introduction significantly expanded the capabilities for solar physics research at the observatory.

The facility serves as a hub for European collaboration in solar research, where scientists from different nations work together on understanding the sun. Visitors can sense the international importance of this location as a meeting place for solar astronomers.

The instrument operates during daylight hours when the sun is visible, taking advantage of clear atmospheric conditions for optimal observations. Visitors should expect high-altitude winds and intense sunlight exposure at the mountain peak.

The instrument contains a vacuum system that prevents internal air vibrations from degrading image quality during solar observation. This vacuum mechanism plays a key role in capturing extremely detailed images of the sun's surface.

Location: La Palma

Elevation above the sea: 2,360 m

Diameter: 98 cm

Part of: Roque de los Muchachos Observatory

Website: http://isf.astro.su.se

GPS coordinates: 28.75973,-17.88074

Latest update: December 10, 2025 15:51