M27 3nm Narrow Band (R, G, B) = (max(Ha,NII), (Ha+OIII)/2, OIII)
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M27 3nm Narrow Band (R, G, B) = (Ha, (Ha+OIII)/2, OIII)
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Equipment:
- Telescope : C14 Edge F7.7
- Camera : QSI 583wsg
- Color Components : AstroDon : 3nm NII, H-alpha, and OIII, 18 x 15 minutes each.
- Mount : AP 3600 GTO
- Camera Control : ImagesPlus 5.0 Auto focus shift tracking and correction during Ha and OIII image capture.
- Guiding : SBIG STi with PHD.
- Processing : ImagesPlus 5.0 x64 - 32 Bit Floating Point Layered Selective Color Masks.
- Image Data : 8/29/2012 & 9/10/12
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