Sh2-157
- Nebula in
Hydrogen Alpha
Click on the image to see it
at 2x resolution
Click HERE
to see the h-alpha channel.
Image Data:
Scope: AP155EDF
Camera: Apogee U16M w Astrodon Gen II Filters
Mount: Paramount ME
35 x 15 minutes H-Alpha
Approx 1 hour each of RGB binned 2x2
Flesherton, Ontario, Canada
Sept-Oct 2012
Ambient temp 6C; camera temp -10C; Moon approaching
full
Images acquired using CCDSoft5
Reduced, Aligned and sigma-reject combined in Maxim
Processed for contrast in PS CS5
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