NGC 6341 - M92
Object: NGC 6341 in Hercules, 6.5m, 11.2', distance 26.7 kly
Subimages RGB only: 4 x 300s, Final FWHM~1.9", calibrated with bias and darks only.
Scope: C11XLT EFL=2940 mm (f/10.5 effective)
Mount: Losmandy G11 with Gemini L4
Camera: ST8XME+CFW10 (0.63"/pixel) set to -20C
Guiding: Self-guide, ExpTime=2s, dithered
Acquisition and processing: MaxIm DL/CCD v4.5
Imaged on: August 19th 2007
Combined each color plane with SDMask delta level.
RGB combine auto bgd equalize and 1:1.022:1.259 weights.
DDP bgd=175, mid=500, no filter
Local Adaptive filter r=3 c=5% then stretched into 0-64K
Adjusted saturation 125%
Unsharp Mask: Filter=Klpm, Weight=80%, GMM=false
Crop 330,20 x 950,950