SKYMASTER® ZKP 4 with LED Illumination

Brilliant white stars for small-dome planetariums

  • Introduction

    Classical, but revolutionary planetarium instrument

    Launching the ZEISS fiber-optic SKYMASTER ZKP 4 planetarium projector meant no less than a revolution for an optical-mechanical star projector. The brilliance of the stars surpassed all expectations. SKYMASTER ZKP 4 LED sets a new performance record. Introducing LED illumination, ZEISS sticks to its concept of a realistic simulation of the night sky. The number of stars of the northern and southern skies projected represents the quantity which a human eye can perceive under premium conditions, and which will not overload the view of the heavens in a planetarium of small or medium dome size.

    Bright and natural starfield

    The LED lit sky is three times as bright as the earlier one. With a color temperature of 6500 K, the white starfield is even more realistic than it has ever been. Matching planet projectors do also feature LED light sources and color filters. The service life of the LEDs with approximately 60,000 hours corresponds to virtually 20 years of operation and thus cuts maintenance costs. ZEISS SKYMASTER ZKP 4 LED is conceived for domes with level horizons and 6 to 15 m in diameter. This model is the ideal optical-mechanical companion to team up with ZEISS fulldome systems, such as powerdome VELVET.

    Useful functions, easy operation

    Sun, Moon and all planets are positioned with topocentric accuracy. A built-in elevator allows the machine to be lowered to clear the auditorium center for unvignetted projections from the periphery, and limitless azimuth rotation expands astronomical presentation capabilities (optional modules). The new control system and the smart operating concept makes controlling this planetarium machine easy. The astronomical software controls not only the mechanical projector but also the digital planetarium integrated with ZEISS hybrid planetariums.

  • Functions
    • Bright stars with natural colors
    • Milky Way, star clusters, gaseous nebulae and galaxies
    • Bright stars shown with individual colors
    • Eight projectors for planets, Sun, Moon and other solar system objects, gegenschein, and for demonstrating satellite orbits, star motions, novae, etc.
    • Moon with surface details, automatic and independent phase change
    • Direct setting of sky positions and observation times within a few seconds (leaps in time and space)
    • Topocentric presentations at high accuracy: exact Moon positions, planet conjunctions, etc.
    • Automatic presentation of the analemma and other motion combinations with a simple cue
    • Dome and effect illumination
    • Diurnal, annual polar altitude, precession and azimuth motion
    • Diurnal motion possible in real time
    • The changing phases of the Moon can be shown while the Moon is moving or stationary
    • All great circles and scales completely graduated and lettered
    • Built-in elevator for unvignetted projection from the periphery across the dome center
    • Integrated azimuthal rotation
    • Control system including control panel
    • Remote diagnosis and remote maintenance facilitate servicing and save costs
  • Modules
    • Meridian
    • Equator and Ecliptic
    • Vertical circle
    • Azimuth scale and zenith mark
    • Hour circle and hour angle scale with celestial pole mark
    • Precession scale
    • Constellation figures of the zodiac
    • Additional constellation figures north/south
    • Cardinal points
    • Horizon lights east and west
    • Azimuthal rotation
    • Built-in lift
    • Shooting stars
    • Comet
    • Control desk
  • Technical Data
    Projection dome
    Dome diameters:
    6 m to 15 m (20 ft to 50 ft)
    Height of horizon: 2055 mm
    Seating capacity: 25 to 140 seats, approx.
    Dome reflectivity:
    40 % to 75 %
    Projection instrument
    Height, max./min.:
    2750 / 1725 mm
    Diameter substructure: 780 mm
    approx. 280 kg
    Power supply: 240/220 V ±10 %, 50 Hz| 130/110V ±10 %, 60 Hz
    Power consumption: max. 1.8 kVA, 1.0 kVA (typ.)
  • Downloads


    (PDF · English · 8 pages · 800 kB)

    (PDF · German · 8 pages · 800 kB)

    (PDF · Russian · 8 pages · 900 kB)

    SKYMASTER ZKP 4 brochures


    SKYMASTER ZKP 4 datasheet
    (PDF · English · 2 pages · 600 kB) 

    SKYMASTER ZKP 4 datasheet
    (PDF · French · 2 pages · 500 kB) 

    SKYMASTER ZKP 4 datasheet
    (PDF · German · 2 pages · 500 kB) 

    SKYMASTER ZKP 4 datasheet
    (PDF · Portuguese · 2 pages · 300 kB)