M57 and surrouding envelope

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Date: 6/7/2006
Location: Ada, MI
Optics: 10" f/5 Certified DSO Newtonian w/ MPCC coma corrector

Mount: Tak NJP
Camera: Starlight Xpress SXV-H9
Exposure: (HaL)RGB Ha=25*4min L=22x2min L filter unbinned, R=G=B=7x3min unbinned, Astrodon (207 minutes total)

Note: Captured, no darks, flat and bias calibrated, aligned, SDMask combined in MaximDL. Luminance Layering (L and Ha combined) and Final Processing in PS CS.

M57 and surrouding envelope