H400_1 with DDM100

ASA at its finest

The H400_1 Telescope System combines the H400 f2.4 widefield astrograph with our DDM100 Direct Drive mount. For precision, the telescope focuser and mount axes feature our absolute encoder technology.

Main Facts
Optical design: Hyperbolic
Linear central obstruction: 45%
Focal length: 960mm
Focal ratio system: f2.4
Clear Aperture / Focal Ratio Primary Mirror: 400mm (15.7 inch) / f3
Image field: 70mm (4.2 degrees)
Mirror material: Fused silica
Back Focus from flange: 91.56mm
Total weight: 113kg / 249lbs
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Motor: ASA Direct Drive
Latitude Range: 0 to 90 degrees
Max. load capacity: 100kg (220lbs)
Weight mount (without counterweight): 56kg (123lbs)
Software: ASA Software package with a platform-independent Ascom Alpaca API (via TCP/IP), compatibility with numerous programs, and many additional API features for:
• Creating and optimizing pointing files
• MLPT (e.g., usable with a N.I.N.A plugin)
• Uploading and tracking TLE and CPF satellite orbits
• Orbit corrections when satellite tracking (autoguiding with external CCD cameras)
• Focus control also via Ascom Alpaca API
• Covers (if installed) via Ascom Alpaca API
Max. slew speeds: Up to 50 degrees per second
Pointing Accuracy (20° to 85°): <8” RMS with pointing model and ASA telescope
Tracking Accuracy (20° to 85° – unguided, with current pointingfile): <0,25” RMS within 5 minutes
System Natural Frequency: 10 Hz or greater

Electronic: Our closed loop direct drive systems, sensor technology and observatory safety modules play a major role in achieving optimum results. All moving accessory components are equipped with high-resolution encoders and closed-loop feedback systems. We provide event timer modules, and remote controllable Software. /More/

Optic: Only the best for your telescope!We believe that the most important part in producing optics is the testing. So ASA decided that we invest in the best test equipment available, remove any measuring error as good as possible and use real values in our specifications. /More/

Technology: Our mounts are manufactured with the lastest CNC technology. /More/

Software: Platform independent API Connection. /More/