M27 - June 2012 - 500 minutes
M27 with data from about 4 more nights of testing in June.
Again, 10 minute subs at 400 ISO. Taken in Menlo Park, CA - deep in a red zone.
Total stack was: 51 lights (best 80% out of 64), 144 Darks, 58 Flat Frames, 22 Dark Flats ,199 Offset/bias, 6 groups based on temperatures from 12C to 17C.
Stacked with DSS 3.3.3 beta 47 with 2x drizzle on a custom frame. Processed with PI using DBE, Masked Stretch, and Histograpm stretch. Couldn't get the plate solve to work.
Camera used: Full spectrum modified Pentax K10D cooled with external peltier device, Baader Moon and Skyglow filter used.
Telescope: Orion 127mm Maksutov Cassegrain (f12)
Mount: Losmandy GM8
Given that I was having a lot of challenges with tracking on this set of data, I'm surprised that I got anything good from them. There are still oblong stars, but it's good for now.
M27 - June 2012 - 500 minutes
M27 with data from about 4 more nights of testing in June.
Again, 10 minute subs at 400 ISO. Taken in Menlo Park, CA - deep in a red zone.
Total stack was: 51 lights (best 80% out of 64), 144 Darks, 58 Flat Frames, 22 Dark Flats ,199 Offset/bias, 6 groups based on temperatures from 12C to 17C.
Stacked with DSS 3.3.3 beta 47 with 2x drizzle on a custom frame. Processed with PI using DBE, Masked Stretch, and Histograpm stretch. Couldn't get the plate solve to work.
Camera used: Full spectrum modified Pentax K10D cooled with external peltier device, Baader Moon and Skyglow filter used.
Telescope: Orion 127mm Maksutov Cassegrain (f12)
Mount: Losmandy GM8
Given that I was having a lot of challenges with tracking on this set of data, I'm surprised that I got anything good from them. There are still oblong stars, but it's good for now.