M57
Optics
Schmidt-Cassegrain 12" - F 10
Focal
3048 mm
Mount
Gemini G40
Camera
SBIG ST-2000 xm
Filters
SBIG Standard LRGB.
Dates
Lug 2005.
Location
 Acilia (Roma)
Exposure
HLRGB = 450:300:150:100:150 minutes.
Acquisition
 CCDSoft, TheSky6
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