The world's largest star register

Uppsala Magnetic Observatory

Sweden · Europe
✦ 59.9030, 17.3530

Satellite imagery: Esri, Maxar, Earthstar Geographics

About this observatory

West of Uppsala, Sweden, the Uppsala Magnetic Observatory continues a tradition of geomagnetic research that stretches back to the 18th century.

About Uppsala Magnetic Observatory

Run today by SGU, the Geological Survey of Sweden, the observatory continuously records variations in the Earth's magnetic field. It is one of a small Swedish network that also includes stations at Abisko and Lycksele, and its data is used for magnetic instrument development and calibration.

History

The site's story begins with Anders Celsius, who ordered a large compass and studied the directions of magnetic field variation in Uppsala. In the winter of 1741, Celsius and his assistant Hiorter observed unusual behaviour in a magnetic needle that coincided with the northern lights, an early clue linking the aurora to Earth's magnetism. Later, Gustaf Svanberg carried out geomagnetic measurements at Uppsala, inspired by the Magnetic Association founded by Gauss and Weber in Göttingen. Together, these observations helped lay the groundwork for understanding the connection between solar activity and Earth's magnetic field.

Location & getting there

The observatory sits just west of Uppsala, Sweden, part of a wider network of Swedish geomagnetic monitoring stations.

Visiting Uppsala Magnetic Observatory

As a technical monitoring station, it isn't set up for general public visits; check with SGU for any current information before travelling.

See your named star from here

This site watches Earth's magnetic field rather than the stars, but Uppsala's own astronomical observatory, with research reaching back to Anders Celsius's era, is close by. Once you've named a star with Star Register, use our catalogue to find its coordinates and view it from a telescope elsewhere in the region.

Opening hours

Opening hours and public-visit programs vary by season. Check Google Maps for current times before you travel.

Frequently asked questions
It's just west of Uppsala, Sweden.
It continuously records variations in the Earth's magnetic field, run by SGU, the Geological Survey of Sweden.
It traces back to Anders Celsius, who studied magnetic field variations in Uppsala in the 1740s, including a notable observation linking a disturbed compass needle to the northern lights in 1741.
It's a technical monitoring station rather than a public attraction; check with SGU for current information.
Location
Nearby observatories
Uppsala Magnetic Observatory, Sweden | Star-Register.eu