Observatori Astronòmic de Castelltallat

High in the Castelltallat mountain range near Sant Mateu de Bages, Catalonia, the Observatori Astronòmic de Castelltallat has grown since its inauguration in 2004 into a reference site for astronomy across the region.

About Observatori Astronòmic de Castelltallat

The observatory runs a full programme of day and night astronomy activities, with education at its core: it serves as a hub for schools throughout Catalonia. Its remote, elevated setting has helped it earn formal recognition for the quality of its night sky.

History

Inaugurated in 2004, the observatory was recognised in 2022 as a Quality Night Sky Space by the Generalitat of Catalonia, and in 2025 it received Starlight Park certification - marks that reflect both its astronomical activity and the darkness of its skies.

Telescopes & research

Observation takes place under a 5.25-metre dome housing a 420 mm (16.5-inch) telescope, a substantial instrument for a public-facing observatory. The site's altitude and isolation from urban light pollution make it one of the more capable observing locations in Catalonia.

Location & getting there

The observatory sits at 878 metres above sea level in the Castelltallat mountain range, near Sant Mateu de Bages in Catalonia, Spain - high and remote enough to stay well clear of city light pollution.

Visiting Observatori Astronòmic de Castelltallat

Public astronomy activities run both by day and at night, with programmes aimed at schools as well as general visitors. Checking the current schedule before travelling is recommended.

See your named star from here

With a 420 mm telescope and genuinely dark skies, this is a strong choice for actually finding a star named through Star Register - staff can point the telescope at any coordinates on a clear night. Look up your star's exact position in the catalogue before you visit.