Sh2-133 - Nebula in H-Alpha enhanced Colour

Click on the image to see it at 2x resolution

Image Data:

Scope: AP155EDF
Camera: Apogee U16M w Astrodon Gen II H-Alpha
Mount: Paramount ME
30 x 15 minutes H-Alpha
8 x 10 minutes RGB binned 2x2
Flesherton, Ontario, Canada
Sept 2012
Ambient temp mid-teens Celcius; camera temp -10C; Moon approaching full for H-Alpha; New for RGB
Images acquired using CCDSoft5
Reduced, Aligned and sigma-reject combined in Maxim
Processed for contrast in PS CS5