Vivitar 135mm Lens @ f/4 SBIG STF-8300M
Atik EFW2 Filter Wheel Astrodon Ha,OIII,SII filters Losmandy G11-Gemini
2
Ha=9x20min OIII=13x20min SII=13x20min
Total = 11hrs 40min
This image covers approximately 6x8 degrees. For comparison the apparent
size of the full moon is about 1/2 degree. NGC7822 is at the top with Cederblad
214 in the center and Sharpless 2-170 below.
