Sharpless 126 - Nebula in Hydrogen Alpha
 
Sh2-126 H-Alpha

Sh2-221 in H-Alpha [click on the image to see it 2x]
Camera: Apogee U16M 
Filter: Astrodon 5nm Gen II H-Alpha 
Scope: AP155 F7 w 4" FF
Exposure: 8 x 15 minutes = 2 hours
Flesherton, Ontario, Canada
Oct 2011
Ambient temp 10C; camera temp -20C; Moon was waxing
Images captured using CCDSoft5
Images calibrated (darks and flats), aligned and sigma-reject combined in Maxim
Contrast / Brightness adjustments, Levels in Photoshop CS4

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