Here are two more "pretty pictures" of IC 5332 to illustrate the gigantic difference between its smooth two-armed Tightly Wound spiral structure, and its very chaotic multiple-armed spiral which is much more open
(a more open spiral structure has a greater 'pitch angle' , in the language of professional astronomy)
Firstly, here is an image by the Gemini South Telescope, showing the smooth tightly-wound symmetric spiral at impressively high angular resolution.
(image was Winner of the 2013 Gemini School Astronomy Contest. Credit: Travis Rector and Australian Gemini Office)
Now here is an H-alpha image from the SINGG survey (image in Ha line ONLY, as the stellar continuum light has been subtracted out beforehand)
