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Loading contentA free, open-source image-processing program for astrophotography that calibrates, registers, and stacks sequences of exposures and then processes the result, with plate solving and scripting built in. It is a capable free alternative for the full path from raw frames to a finished image.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.