A theater or structure that projects images of celestial bodies and is used for educational purposes.

आकाशगंगा दृश्यशाला

English Usage: The school took a field trip to the planetarium to learn about the stars and planets.

Hindi Usage: स्कूल ने तारों और ग्रहों के बारे में जानने के लिए आकाशगंगा दृश्यशाला की यात्रा की।