As the successor to the first small-size planetarium ZKP 1 from ZEISS, the SKYMASTER ZKP 2 planetarium model series was a completely new development for domes with preferably 6 m and 8 m diameters. Equipped with a card control system, the instrument allowed automated shows in a small planetarium for the first time. With its dumbbell design, the projector is not only reminiscent of large planetariums, its presentation possibilities also reach those of large planetariums. The Sun, Moon, and planets were given motor drives for geocentric displays for any location on Earth. Astronomical education and navigation training are supported by the instrument by means of a variety of auxiliary lines and markings, including hour circle and vertical circle, both controllable. The Nautical Triangle can thus be displayed for any star. The optical starry sky is optimized for small domes with about 6000 stars up to 6th magnitude. SKYMASTER ZKP 2 were delivered and installed in the period from 1977 to 1992.