APM Classic 8,5m Dome

APM Classic 8,5m Dome

Classic dome with an outer diameter of 8.5 m. INCLUDES motors and electronics for controlling the rotation as well as the opening and closing of the dome opening. The dome comes with the following documentation: user manual, technical data sheet, installation instructions Warranty: 5 years
Manufacturer : APM Telescopes
SKU : APM-classic-Dome8.5
Estimated delivery time : on request (valid for new orders)
Product description

The APM Classic 8.5-metre dome represents a class of observatories that combine professional performance with a modular design. It offers ample space for large telescopes, extensive instrumentation and comfortable working conditions – a design that appeals to both ambitious amateur observatories and scientific institutions.

Architecture and Construction

The dome is based on a robust, weather-resistant GRP structure designed for durability. The segments are manufactured to offer high rigidity whilst remaining relatively lightweight. This facilitates transport, installation and subsequent maintenance. The 8.5-metre class also allows for a generous internal height, meaning that even long focal lengths or complex mounts can be accommodated with ease.

Functional features

A key feature of this dome size is a wide, motorised aperture, which enables precise tracking and automated operation. The control system can be integrated into modern remote setups, allowing observations to run completely unattended. Optional extras include rotation drives, climate control and customised interior fittings – ranging from cable ducts to platforms for visitor use.

Areas of application

An 8.5-metre dome opens up a wide range of possible uses:

  • Research: photometry, spectroscopy, astrometry or long-term projects.

  • Public relations: Planetarium-style tours, school programmes, work with local organisations.

  • Astrophotography at the very highest level: High-quality optics benefit from the stable environment and protection from wind and stray light.

Significance for modern amateur and professional radio stations

In an age of increasing automation and a growing number of community projects, domes of this size provide an ideal platform for pursuing ambitious astronomical goals. They combine professional standards with the flexibility required by private or institutional operators.

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Products specifications
Technical Data

Technical specification

Outside diameter about 8.5 meters

Internal diameter 8.2 meters

Dome Frame: Structural steel with Corrosion protection painting (TBD)

External cover: Aluminium sheet 1.2 mm thick prepainted

Shutter width: 2.4 meters

Structural fixing technique: Welding and rivets

External Color: White RAL 9010

Internal color: RAL 9005 Black matt or Gray

Operating temperature: -10° to 50°

Humidity range during operation: 5% to 95%

Wind resistance with closed Dome: 130 km/h proved with FEM analysis

Wind resistance with open Dome: 50 km/h proved with FEM analysis

Azimuthal rotation speed: 5° /sec

OHB Technical specification

Azimuth rotation acceleration: 2.5° /sec²

Azimuth motor: 3 or 6 Brushless motor 380V or 220V TBD

Opening / Closing Shutter: 2 Brusheless motor 220V with manual mode closing

Limit Switch Open – Close: 4 pcs total witch 2 NO + 2NC contact for shutter drive

Total time of opening / closing Shutter: 30 to 60 Sec TBD

Structural calculation report: Wind snow and Earthquakes included TBD

Thermal insulation: Rock Wool thick 70-100mm

CE Marking with EN 1090-1 Metal structure