ZEISS Asterion


The New Star Ball for ZEISS Hybrid Planetariums

Fewer and fewer people have experienced for themselves an unspoiled view of the night sky. Planetariums, therefore, have the task of simulating the starry sky to appear in its most natural way possible. ASTERION is the contemporary answer to this task.

  • Brilliant Night Sky
  • Compact and Elegant
  • Economical and Environmentally Friendly
Asterion and Stars


ASTERION is designed as an opto-mechanical hybrid component and shines with exactly what digital projections cannot: with stars, clear and bright, point-like and in natural gradation with a Milky Way that is particularly realistic to the eye.

Premiere Presentation for the IPS 2020 virtual Conference

in English

  • Recording: International Planetarium Society
ZEISS Asterion Hybrid System

True Black Hybrid Planetarium

Combine ASTERION with VELVET LED for the uncompromising combination of analogue starry sky projection with digital fulldome projection. Uncompromising, because the digital projection does not interfere with the brilliance of the starry sky and because the digital and analogue planetarium always match one hundred percent.

Typical installation in an 11 m dome with a two-channel VELVET LED system in the centre.
Typical Configurations

ASTERION VELVET for small size planetariums up to 12 m dome diameter

In smaller domes between 8 m and 12 m in diameter, the combination with a two-channel VELVET LED system is recommended. The two VELVET LED projectors in the center of the dome create a shadow-free dome image with nearly 3k resolution.

Typical installation in a 15 metre dome inclined at 25 degrees with a six-channel VELVET LED system at the edge of the dome.

ASTERION VELVET for medium and inclined dome sizes

Example system configuration for an inclined dome of medium size. ASTERION with the projectors for the sun, moon and planets is located in the centre of the dome. Six VELVET LED projectors at the edge of the dome produce a shadow-free dome image with a resolution of almost 5k.

ZEISS Asterion

Compact and Elegant

ASTERION puts high opto-mechanical technology into a miniaturized form and creates the brightest starry sky with the smallest Starball of its class. It offers virtually no obstruction to the visitors.

Inspire audience with your performances, but also with your technology. ASTERION is a technical piece of art, small but prominent, raising curiosity.

ZEISS Asterion dimensions

Economical and environmentally friendly

With just 220 watts you won’t find ASTERION on your electric bill. ASTERION wants to be looked after, but will not devour your service budget. No consumables anymore to buy, exchange and waste.

Product Details

    ASTERION Premium

    Dome diameter / tilt

    8 m – 14 m, 0° – 30°

    15 m – 18 m, 0° – 30°

    Dome Reflectivity

    30 % – 60 %

    45 % – 65 %

    Horizon Height

    1650 mm – 2055 mm (standard)
    min. 400 mm (in consultation)

    2055 mm – 2200 mm (standard)


    integrated lift for Starball optional

    integrated lift for Starball optional

    ASTERION Premium

    Starry Sky

    approx. 7,000 stars (down to 6.3 mag)

    approx. 9,000 stars (down to 6.55 mag)

    Coloured Stars

    natural tints for all stars down to 1.7 mag

    natural tints for all stars down to 2.1 mag

    Scintillation (all stars)



    Milky Way

    optical projection

    (based on Gaia data)

    optical projection
    (based on Gaia data)

    Deep Sky Objects



    Sun and Moon


    standard: approx. 1 degree diameter, Moon incl. clear surface details and phase changes



    Merkur, Venus, Mars, Jupiter, Saturn


    ASTERION Premium

    Height max.

    2322 mm

    2377 mm


    approx. 655 mm Dm.

    approx. 760 mm x 1660 mm


    approx. 130 kg 

    approx. 150 kg

    Starball Diameter

    320 mm

    320 mm 

    Starball Rotation

    up to 60° / s

    up to 60° / s

    Effect Lighting 

    RGB light ring 

    RGB light ring


Do you have any questions?

We look forward to hearing from you!

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