dchamberlain
Well-known member
Hi,
I am using a ZWO ASI1600MC-Pro on an Astro-Tech 14" RC. I took 53x180 sec subs of M81 the other night and the subs looked fine, aside from some tracking issues. The subs were taken at 200 gain/50 offset using SGP. I took flats, dark-flats, and darks, 40 of each. Ran them through WBPP using galaxy settings and the result I got was an image of the galaxy with colored streamers, almost like rain in a windstorm, running through the image (see attached non-linear jpg).
Can someone tell me what is the cause of these streaks and how to get rid of them?
Thanks for any advice!
Dale
I am using a ZWO ASI1600MC-Pro on an Astro-Tech 14" RC. I took 53x180 sec subs of M81 the other night and the subs looked fine, aside from some tracking issues. The subs were taken at 200 gain/50 offset using SGP. I took flats, dark-flats, and darks, 40 of each. Ran them through WBPP using galaxy settings and the result I got was an image of the galaxy with colored streamers, almost like rain in a windstorm, running through the image (see attached non-linear jpg).
Can someone tell me what is the cause of these streaks and how to get rid of them?
Thanks for any advice!
Dale