10 Apr 2026
I used the Hubble maping for SHO to RGB to process the images. It gives a greener look to the final image than the data set example which maps the Oiii (normally green) to red, giving a more yellow image. I used Gimp and Sequator to stretch, stack and compose the image.
Sh 2-274
8 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Halpha | 293 | 3h35m | 44 |
| SII | 293 | 3h30m | 43 |
| OIII | 314 | 3h45m | 43 |