RGB Data:Canon 350D Hap Griffin Baader Mod70x180sec at iso 1600
30 Darks/Flats/Bias
Celestron 9.25 reduced 0.63February 22, 2009
Hydrogen Alpha Data:
Meade DSI Pro 2 Mono
12x480secDarks/Flats AppliedMeade SN8 ReflectorBaader 1.25" 7nm H alpha filter
February 20, 2009
Astronomy Magazine Picture of the Day July 7, 2009Collaboration with Ted Rafferty, using his Ha data and my RGB data to better show the HII regions of M81. The Ha data adds quite a bit, but it's somewhat subtle in appearance as M81 is quite "nodular" anyway.