I've been using a software called StarStaX to make startrail images. http://www.markus-enzweiler.de/software/software.html
However, I've been having trouble with the color of the images after it goes through StarStaX. The seems to mess with the colorspace in the images. I tried feeding it ProPhoto RGB vs Adobe RGB. The stacked Adobe RGB results are closer to the original images, but still appears more purple.
To make things easier, I only stacked two images in StarStaX to make things simpler. I just wanted to show the color difference when you run images through that program.
Is there any way I can correct this?
ProPhoto RGB vs stacked result
Adobe RGB vs stacked result