AfterNight is free software and public: the source, the issue tracker and the releases are on GitHub.
Integration takes bias, dark, flat and light frames through calibration, registration, alignment, normalization and stacking, with rejection, weighting and drizzle, and reuses a stage whose inputs and settings have not changed.
About eighty processes finish the master. Most preview their result on the open image before it is applied, and every applied step is kept in the image’s history.
Plate solving against Gaia catalogs, and photometric and spectrophotometric colour calibration against Gaia DR3.
Python extensions run in a separate, supervised host process and install from the extension marketplace.
Packages
Windows installer, for the current user or for every user of the computer.