See also our detailed Catalog for Baader Standard Domes (AllSky or Classic Slit-Dome) and Turn-Key Observatory Solutions
Baader Slit Domes – Advanced
Observatory domes with broad up- and over-shutter and that can be controlled remotely, sized from 2.1 to 8.5 meters in diameter. They can be in sync with your remote / robotic telescope setup, with endless rotation, horizontal flap movement, and are fully ASCOM and INDIGO compatible – or via dedicated API.
Advanced Slit Domes are used by a variety of users and can fit medium to large telescope setups that have up to 2000 mm aperture.
Baader Advanced Slit-Domes are available in sizes: 3.2m, 4.2m, 5.3m, 6.15m and 8.5m
Applications
- Astronomy / Astrophotography
- Satellite Laser Ranging (SLR)
- Space Domain Awareness (SDA)
- Free-Space Optical Communication (FSOC)
- Defense
All Baader Slit Dome models include
| Installation | Performed by Baader personnel at the customer site |
| Warranty | 2 years warranty for all electronic and electric components |
| 10 years warranty for outer dome skin and dome mechanics | |
| We warrant for 200km/h wind speed to achieve undeteriorated performance and protection of the dome interior, with the dome being closed and in parking position | |
| Fail-safe Features | Hand crank system to close dome in case of power failure |
| Ready for Emergency Weather Station (required for remote operation) |

Required for all Baader Slit Domes:
Either short cylinder (A) or cylindrical base (B)
The short cylinder is the interface between the dome and the structure is it to be installed on. The cylindrical base is another option that can be incorporated to maximize the interior of an observatory.
Baader Slit-Dome (Advanced) – 6.15m
Product Details
- SKU2200506
- ManufacturerBaader Planetarium
- Size Domes6.15m
- Total Mass - Short Cylin.~ 4.000 kg (including base option)
Mechanics
- Azimuthal drive conceptThree geared drive units
- Flap and Shutter speed30 s
- Rotations Rate(s)2°/s up to 30°/s
Operation & Control
- Command & ControlCable-bound Hand Controller, RS232 and TCP/IP (Webinterface and native API)
- Communication ProtocolProprietary API (TCP/IP, RS232), ASCOM-Alpaca (TCP/IP), ASCOM (RS232), INDIGO (RS232)
- Emergency closure (Power Fail)1. layer: UPS / 2. layer: manually, hydraulically assisted
- Emergency closure (Weather)Weather Station included for emergency closure only, no readout
- Uninterrupted Power SupplyEmergency closure UPS single-phase
Structure & Material
- Dome air volume84 m3
- Mandatory Base OptionsShort Cylinder (Wall Adapter)
- MaterialGlass-fiber reinforced polyester (GRP), double layer with intermediate insulation
- Recommended telescope apertureup to 1.500 mm
- Slit Width (mm)1.950 mm
Power & Electronics
- EncoderAbsolute encoder in Azimuth and Shutter
- Power max. Peak11 kW (12,5 kW) - incl. Ads. dryer)
- Power Requirements400 V 3ph (50/60 Hz)
- Required RCDAll current sensitve residual circuit breaker (Typ B, Ierr = 300mA)
Climatic Conditions
- Humidity inside (Operational)45 - 100% (Operation at up to 100% humidity possible for up to 24h, afterwards humidity must be reduced to < 60%
- Humidity inside (Survial)45 - 60% (Recommended: Dome Adsorption Air Drying Unit Set | Permanent humidity of 100% outside the dome is no problem)
- Operating TemperatureStandard: -20°C to +40°C / optional Climatic Performance Upgrades available
- Survival TemperatureStandard: -40°C to +60°C / optional Climatic Performance Upgrades available
- Wind Speeds (Operational)up to 60 km/h (7 bft max. gusts)
- Wind Speeds (Survival)Standard: up to 200 km/h / optional High-Alpine Upgrades up to 300 km/h available
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