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Tools
Tools
Tool I
Focal length calculator
Image scale, focal ratio, field of view, and a target-size diagram for any telescope + camera combination.
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Tool II
FOV simulator
Drop your camera onto any deep-sky object and see exactly how it frames, over real DSS2 / 2MASS / WISE sky imagery.
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Tool III
Live sky map
Every star to mag 6.5 plus every Messier object, plotted in alt/az for your location, this minute. Computed client-side.
soon
Tool IV
Sky forecast
Cloud, transparency, seeing, and Kp aurora index for the next 72 hours, refreshed every 30 minutes.
soon
Tool V
Exposure calculator
500 + NPF rules for tracker-less wide-field, plus deep-sky sub-exposure length given gain and sky brightness.
soon
Tool VI
Polar align
Polaris hour angle, reticle clock position, drift rate.
soon