TEC140 @ f/5.4
Riccardi .75x Reducer SBIG STF-8300M
Atik EFW2/OAG
Astrodon Ha,OIII,SII filters Losmandy G11-Gemini 2
SII=12x20min Ha=15x20min OIII=17x20min + 5x45min Total = 18hrs 25min
This started as a bicolor Ha/OIII image. I noticed that the 20min
OIII exposures just started to reveal the not often imaged outer halo.
So I added 45min OIII exposures (my longest yet) to bring out the halo.
I also added SII data to make a more complete tri-color image.