Ostrava planetarium, Planetarium and observatory in Ostrava, Czech Republic.

Ostrava Planetarium is an astronomical facility in the city with modern projection equipment and observation areas located at approximately 275 meters elevation. The complex includes spaces for sky projections and scientific exhibitions designed for exploration and learning.

The facility was founded in 1980 by the Faculty of Mining and Geology at VSB Technical University to advance space education in the region. Its establishment reflected the city's role as a center for technical and scientific development.

The planetarium is named after Johann Palisa, the Silesian-born astronomer known for discovering asteroids; it carried his name from 2000 to 2014. Its programme includes several dozen shows tied to school curricula in physics, geography and natural science, some offered in English for language students.

The building sits on Ostrava's western edge in Krásné Pole, with two domes flanking it: the Stellar Observatory on the left and the Solar Observatory on the right. Evening public observing runs in the left dome, while weekend solar observing takes place in summer. School groups use the solar dome during the school year.

The dome's 13.2-metre screen is fed by two 4096 × 4096 projectors running Digistar 7, and in April 2010 the planetarium premiered the programme Virtual Universe: Start!, the first use of Infitec stereoscopic 3D projection with passive glasses and the Uniview visualisation environment in any planetarium worldwide.