UNIVERSARIUM Model IX LED is the top-of-the-line opto-mechanical planetarium projector, installed in the biggest planetarium domes of this world. It comprises a computer controlled astronomical projection system for the complete presentation of the stellar sky and the objects of the Solar System. It allows to present the most realistic night sky from all observation points on Earth by means of topocentric presentations and with highest accuracy for the times span of -10,000 to +10,000 years. UNIVERSARIUM Model IX LED is distinguished as compared with all other astronomical projection systems by the brightness of the presentation of the starry sky. The Starball carries 130 projectors for the stars, the Milky Way, constellation figures and numerous didactic displays.