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Lightweight and compact. The H400 f2.4 astrograph is the ideal platform for widefield imaging and all-sky surveys. The H400 features a 5-inch corrector and motorized focusing with absolute encoders. The H400 ensures precise focus and high-resolution data acquisition of the night sky – in the shortest possible time! Fits perfectly with the ASA Direct Drive mounts. The H400 was selected as the instrument of choice for the Super Wasp II Exo-planet program, a consortium of universities and space agencies including: Geneva University, Leicester University, Queens University Belfast, the University of Warwick, the German Aerospace Center DLR, and the GOTO project. This very fast 400mm telescope is also available as a package in combination with a ASA DDM100 Direct Drive mount! 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
Surface quality
>94 strehl
Microroughness
1nm RMS / <0.7nm Ra
Coating
Al+SiO2 >96 %
Back Focus from flange
91.56mm
Weight tube
57kg / 126lbs |