Dark nebulae immersed in ionized hydrogen and molecular clouds in the constellation of Cepheus. A late start of the season for me as I was waiting for my camera to return from service. Also getting closer to good collimation and have this is first try with a reduction gear I made for the Robofocus, - seems to work really well. Still a way to go on collimation, but finally on the right track, I think. I tried the PhotometricColorCalibration for this. I'm pretty happy with the result, - the image is really red, but I've seen other similar renditions of this area, so I guess it is not all wrong. I got error messages from PCC when trying to run it on the drizzle-integrated image, one ok message at the end of the process and then two errors about PCC not finding any stars. I had remembered to use half pixel size in the PCC settings to accommodate for the doubling of resolution. I resolved this by resampling a clone of the image to 50% which PCC had no problem with at all, and using PixelMatch to change the color of the image according to the output in Process Console. I have no procedure in PixelMath for neutralizing background though, so I used BackgroundNeutralization for this. Read somewhere that PCC has issues with large images, which seems to have been the problem here. Does anyone know if this issue is being adressed? Would sure like to use PCC also for the drizzled images especially in areas where there is no background to use as a reference for the BackgroundNeutralization tool.
Larger versions here:
https://flic.kr/p/CU9mRwOptics: Epsilon 180ed 8" f/2.8
Camera: QSI 583wsg
Guider: Lodestar via OAG
Mount: EM-200 Temma 2m
Exposure: L=35x600s, R=8x600s, G=8x600s, B=8x600s. Ha=8x600s +Darks, Flats
Total integration time: 11,2hrs
Filter: Astrodon LRGB Gen II and Astrodon Ha 5nm
Captured with The Sky X,
Processed in Pixinsight
Shot from Bjarkebu Observatory near Ytre Enebakk/Norway on the 18th and 29th of October 2017.
Clear skies!
Ginge
