ASA H400 f2.4 + DDM100
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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
Weight tube
57kg / 126lbs
Motor
ASA Direct Drive
Latitude Range
0 to 90 degrees
Max. load capacity
100kg (220lbs)
Weight mount (without counterweight)
56kg (123lbs)
Software
ASA API (application programming interface) available autumn 2023 ASA Software(Autoslew, Sequence-windows based, ACC) with ASCOM-Alpaca
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°)
<0,25” RMS within 5 minutes tracking time over 5 min 0,05” RMS/min
System Natural Frequency
10 Hz or greater |