Reprocessing of the Elephant's trunk and Rosette nebulae

Here are images of The Elephant's Trunk Nebula from last December and the Rosette nebula from 2013.

Rosette image was 6x300s each of Ha,O3 and S2 with a few RGB subs of 120s over 3 consecutive nights in March 2013,

The method was the same in both images, use SCNR to remove greens then increase saturation in curves until I had the colours correct. Finally, increase contrast by applying a gentle S curve to the luminance layer.

Click on an image to  get a closer view of these narrowband images

Elephant's trunk nebula

Rosette nebula

Anne Startup