NGC 2392
There is a very good article on this object and its x-ray data here, at the Chandra website. I can't think of anything unique or insightful to add. I avoided greatly saturating the red and yellow knots as seen in other versions of this same image. I think it gives a better sense that the blueish parts are probably a sphere surrounding the whole thing and not a disc shape which happens to face us, but I guess it could be a disc. If only we could get a different viewing angle for these things, they'd be easier to understand.
2020/02/18 addendum: To be clear, there is no x-ray data in this image.
Red: hst_11122_05_wfpc2_f658n_wf_sci
Green: hst_11122_05_wfpc2_f656n_wf_sci
Blue: hst_11122_05_wfpc2_f502n_wf_sci
NGC 2392
There is a very good article on this object and its x-ray data here, at the Chandra website. I can't think of anything unique or insightful to add. I avoided greatly saturating the red and yellow knots as seen in other versions of this same image. I think it gives a better sense that the blueish parts are probably a sphere surrounding the whole thing and not a disc shape which happens to face us, but I guess it could be a disc. If only we could get a different viewing angle for these things, they'd be easier to understand.
2020/02/18 addendum: To be clear, there is no x-ray data in this image.
Red: hst_11122_05_wfpc2_f658n_wf_sci
Green: hst_11122_05_wfpc2_f656n_wf_sci
Blue: hst_11122_05_wfpc2_f502n_wf_sci