Consisting of two hemispheres with a diameter of 400 to 1000mm, the SN88 projects 2500 to 6000 individual stars, observing their magnitude, the colour indicating their temperatures and their relative positions as well as the Milky Way, 10 Messier objects, Magellan's major and minor clouds, the ecliptic, the equator and the constellations of the zodiac, additional constellations and the cardinal points.
Motor-driven along 3 axes, the SN88 allows all simulations as observed from the surface of any heavenly body of the solar system: diurnal motion, motion in longitude and latitude, annual motions, precession motion, etc...