Hi all
As usual the weather has turned to wet and cloudy and a bout of laryngitis means that I have been able to catch up with some processing and also to have a go at a bit of experimentation. A couple of weeks ago when I captured the Ha data for my Horsehead image I also managed to capture an hour each of Ha, OIII and SII in 10 minute unguided subframes for the Rosette nebula (NGC 2237-9,46) so first of all I did an image using the HST palette of SII for red, Ha for green and OIII for blue using the Ha data for the luminance layer as well. After I procesed it I thought I'd see what the results would be if I swapped the palette around a bit and I think I got slightly carried away. Any way the results are below in the following order
1. HST palette --- SII=R Ha=G OIII=B
2. Reverse HST palette --- OIII=R Ha=G SII=B
3. CFHT (Canada France Hawaii Telescope) palette --- Ha=R OIII=G SII=B
4. Unconventional palette (I used it before on the Crescent nebula) --- Ha=R OIII=G OIII=B
Hope you like them and thanks for looking
All the images used the same Ha data as a luminance channel and all 4 images were processed at the same time to ensure the same processing was used for each one. Details of equipment used can be found on my website http://www.imagingtheheavens.co.uk
Best wishes
Gordon
Gordon, Nice selection of palettes. You need to weight the SII more in the SHO image. The Ha data dominates the image too much. PS clipping masks will help manage this if you decide to reprocess. Overall, well done.