Last night, when it was finally clear again, I tested the frame mode of the new Seestar app on M31 and the Rosette Nebula. With M31, the app hung up after about 700 lights, all further exposures were no longer stacked with the error message “stacked failed.” I then aborted, after all, a very large part of the mosaic had already been exposed. The subsequent mosaic of the Rosette Nebula ran smoothly to the end (whatever the end is, at least there was no black corner in the preview image).
The stacked fits files looked good, but both mosaics contain satellite trails. I have now deleted lights with satellite tracks from the folders.
My question: How can I restack the remaining 700 or so lights into a track-free mosaic using on-board tools/free software? Is this also possible with the Deep Sky stacking option of the app directly on the S50? Is there any other software apart from the expensive Pixinsight that makes this possible? With Siril and ASIDeepSkyStack it doesn't work straight away. Without this, the new mosaic function of the S50 is not very useful, because with the many hundreds of lights there is always one or more with satellite tracks.
