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!
Color calibration and slope
Can someone explain to me what we are trying to achieve by adjusting the slope values when doing star color calibration? Would it be possible to see some images of before and after. I have watched some videos on this but doesn't really show what the goal is here; meaning, are we trying to create a tighter star group? or do we want the graph scale to be 1:1 so the plot plot line is at true 45 degrees, or ?? I hope this makes sense, just confused on how we use slope adjustments to make a better color calibration. Thanks!!
So here is a post with some extra information about it. It's a bit older but still applies; https://www.astropixelprocessor.com/community/tutorials-workflows/star-color-calibration-1-58-completely-red-now/
Basically the slopes sometimes need to change as filters can introduce an offset in what we expect to be a black body signal from the stars.