SUMMARY The Rot parameter should indicate the actual rotation of the camera relative to axes. Hence this angle depends on how the photo was captured In my case, the Rot angles of astrometric solutions for different targets are ALWAYS very near to 90° or 180° STEPS TO REPRODUCE 1. In the Solver panel, Load & Slew already recorded FITS files 2. 3. OBSERVED RESULT Rot is always very near to 90° or 180° EXPECTED RESULT It should vary continuously between 0° and 360° SOFTWARE/OS VERSIONS Windows: MacOS: 10.14 Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
There is nothing wrong with that.. if it is 90 or 180, this is what astrometry.net resolves in respect to north pole. It's measured in degrees East of North.