H400 f2.4 - Datasheet

ASA H400 f2.4


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

Main Facts