Hradec Králové Observatory, Astronomical observatory in Hradec Králové, Czech Republic.

Hradec Králové Observatory is an observatory and planetarium on a ridge at about 287 metres above sea level, on the border of the Nový Hradec Králové and Třebeš districts. Its main construction ran from 1947 to 1961. The building holds large telescopes, a ten-metre Foucault pendulum, a lecture and projection hall for 100 people, and one of the oldest still fully working mechanical planetariums in Czechia, made in the 1950s. The Czech Hydrometeorological Institute's Solar and Ozone Observatory and part of the Institute of Atmospheric Physics of the Czech Academy of Sciences also occupy it.

Construction of the observatory on the ridge between Nový Hradec Králové and Třebeš ran from 1947 to 1961, and the facility was founded in 1961. A digital planetarium from Carl Zeiss Jena was opened in the building on 23 January 2015, and two educational trails were laid out around the observatory in 2005.

The name Hvězdárna a planetárium links the site's two functions: an observatory and a planetarium. In the corridor of the digital planetarium, exhibitions are held regularly, showing space technology, signatures of astronomers and cosmonauts, and paintings on prehistoric and cosmic themes. Two educational walking trails, planetary and galactic, begin at the building.

Visitors can participate in public programs held several times each week and use the telescope on nights with clear skies. It is helpful to check the schedule in advance and be prepared for changing weather conditions, since observations depend on sky visibility.

The planetarium uses specialized ZEISS projectors engineered specifically for sky projection, making it possible to take virtual journeys through cosmic phenomena. This technology creates an experience that allows visitors to see distant stars and space events in a new way.