Latest from Bells Observatory. RCW 75 (aka Gum 48a) is not often imaged. It's quite a challenging target with an ocean of bright stars tending to get in the way of the faint neb. With proper techniques, the impact of the stars can be reduced so the the neb detail pops into view.
In any case, this is my first completed image in over a year (!!) thanks largely to the appalling La Lina weather!!
I actually started this way back in 2015 with Ha, adding some more in 2017. With a couple of clear nights earlier this month, I gathered LRGB data. I was definitely a bit rusty, but managed a reasonably decent result I think.
This is a 14.66 hour natural palette LHaRGB image. Lum - 3 hrs (10 min subs), Ha - 5.5Hrs (30 min subs), Red - 2Hrs (10 min subs), Green - 2Hrs (10 min subs), Blue - 2.16Hrs (10 min subs)
Summary details of the object are underneath the images.
Screen sized:
https://pbase.com/gailmarc/image/172622000/original
Annotated:
https://pbase.com/gailmarc/image/172622003/original
Full res:
https://pbase.com/gailmarc/image/165234613/original
Cheers, Marcus
PS: I processed the image in the Adobe RGB colour space and, for best viewing results, they really should be viewed using Firefox or Edge (2nd best) on a calibrated monitor.