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• Complex LLRGB composites made easy (under Tutorial videos)
• Your signal and its noise component (under Tracking is signal preservation)

  In your final image, noise is worse in some areas, less in others.

• Traditional image processing software for astrophotography is fundamentally broken (under Tracking is signal preservation)

  Current image processing routines and filters are still as 'dumb' as they were in the early 90s.

• Using masks from startools.log (under Usage)

  This StarTools.log file is located in the same folder as the executables.

• Edge located dark anomalies (under Preparing data for the Wipe module)

  Failing to deal with them will lead to a halo effect near the edges of your dataset.