The Vihorlat Observatory in Humenné is a regional specialized scientific-research, cultural-educational and professional-observation institution in the field of astronomy and related sciences.

The Vihorlat Observatory in Humenné was founded in the year 1952 and during the fifty years of its activity it became an important centre of astronomical education, promotion and observation in the region of Upper Zemplín. The building of the observatory is situated in the middle of the town and is easily accessible for visitors. It provides the possibility of lectures in the hall for 50 listeners and observation with telescope type Cassegrain with diameter of the main mirror 250mm, which is situated in the 4-metre cupola. Professional activities of the observatory are centralised in the detached professional workplace in the Astronomical Observatory in the gap Kolonické sedlo, the main building and observation pavilion of which were built in the year 1999. The centre is situated in a mountain gap amidst beautiful nature of Vihorlat and Bukovské Hills 38 km far from Humenné. The dominant of the observatory is the Vihorlat national telescope (VNT) – telescope of Cassegrain type with the diameter of the main mirror 1 meter, which is the biggest telescope in Slovakia. The observatory represents a comprehensive complex for performing professional activities in the field of observing variable stars, meteors, star eclipsing by Moon and Sun photosphere.
The basic mission of the observatory is on the grounds of observations to collect, scientifically and professionally assess, professionally process and present to the public newest knowledge in the field of astronomy and related sciences, in the region of Upper Zemplín, especially within the territorial region of districts Humenné, Snina, Medzilaborce and Vranov.




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