Messier 1 - The Crab Nebula
The Luminance was dithered and Sigma Reject combined. I loaded the Luminance with the Fits Liberator and processed that from before a few weeks ago. For the color I used the Fits Liberator and the used the action that came with it.
Telescope - MakNewt 8" F/6
Camera - SBIG ST-7 XME
Mount - Custom Built with 11" Byers drive system
Filters were Custom Scientific 4.5nm:
Luminance: H-Alpha (Hydrogen) 180 minutes (18x10) (1x1):
Red: SII (Sulfer) 30 minutes (6x5) (2x2):
Green: H-Alpha (Hydrogen) 30 minutes (6x5) (2x2):
Blue: OIII (Oxgen) 30 minutes (6x5) (2x2) :
This fits liberator image is not available for sale.
Dean Salman & the ESA/ESO/NASA Photoshop FITS Liberator