IC 4628 (Gum 56) The Prawn Nebula, NGC 6231 (oc); Scorpius 
Astro-Physics 155 EDF (155TCC) f/5.4 refractor 
KAF-16803; FLI Proline 
Total Exposure Time: 8.5+ hours; SHO:RGB 120:160:170:21:21:21 minutes, SII and OIII binned 2x2, RGB used for star color only 
May-June 2009; RDO, Moorook, AU 
Comments: This southern nebula is commonly referred to as The Prawn Nebula, but for the life of me I can't see the shrimp in this image! Below is what I imagine where the prawn is in the image (you can even see its eyes). The colors are mapped to red-SII, green-H alpha, and blue-OIII. 
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