The Rosette Nebula in Hydrogen Alpha
Cone & Foxfur

The Rosette Nebula
ST-10XME on AP155 F7
Astrodon 6nm H-Alpha
7 x 20 minutes H-Alpha on AP900GTO
Flesherton, Ontario, Canada
Feb 23/24, 2008
Ambient temp -8C; camera temp -25C; Moon three days past full
Images captured, darks and flats applied in CCDSoft5
Aligned, debloomed and sigma-reject combined in Maxim
Levels, HighPassFilter in Photoshop CS2