19 June 2021: Our upload server https://upload.astropixelprocessor.com/ has been migrated successfully to our new office with higher upload and download speeds (nearly 10MByte/sec up/down ) ! We now have 1 general upload user called: upload with password: upload. The users upload1 - upload5 have been disabled.
31 May 2021: APP 1.083-beta2 has been released ! APP 1.083 stable will follow soon afterwards. It includes a completely new Star Reducer Tool, New File Saver Module, Improved Comet registration and much more, check the release notes here!
Nearly 4.5 hours on the California Nebula
Finally stacked the data I acquired over two night on the California Nebula, with my new (well, second-hand) ASI183MM-Pro. I shot a load of short subs without guiding using an Astronomik 12 nm H-alpha filter, and Canon 200mm F/2.8 L lens. Unfortunately, APT assumed the new camera was a colour camera with RGGB bayer pattern. Using "no interpolation" debayer method as suggested in APP got reasonable results, but also produced some odd artefacts. I therefore retook the darks with APT set to interpreting the camera as monochrome, and edited the FITS headers of the master flat and lights to remove any mention of the bayer pattern, and ensuring everything was treated as monochrome, and lo and behold, it worked, Now I need to add some colour to this