Jim Burnell's CCD Images - NGC6888 in Hydrogen-alpha Light Clicking on the image will display a high-resolution view.

 

Hydrogen-α
Object: NGC6888	Emission Nebula	Const.: Cygnus
Camera: SXV-H9	Scope: Vixen R200SS	Mount: Losmandy Titan
Filter(s): Hα	Exposure: 10x8m	Taken during a full moon
NGC6888, the Crescent Nebula in Cygnus. This image is a stack of 10 eight minute exposures shot through a Hydrogen-alpha filter. The exposures were acquired using an SXV-H9 CCD camera on a Vixen R200SS 8" f/4 Newtonian equipped with a Paracorr. The exposures were calibrated, defect-corrected and stacked using AIP4WIN. A few new experimental tools were applied to enhance the structure. The image was acquired during a full moon. This image has been resampled down from its original size of 1392x1040.

 

Hydrogen-α
Object: The Crescent Nebula NGC6888 and IC1318	Emission Nebula	Const.: Cygnus
Camera: SBIG STL11000M	Scope: Tele Vue NP127is	Mount: Losmandy Titan
Filter(s): Hα	Exposure: 18x8m	blank
This image shows the emission nebulae IC1318 and NGC6888 (a.k.a The Crescent Nebula) in Cygnus in Hydrogen-alpha light. This image was acquired using an SBIG STL11000M CCD camera mounted on a Tele Vue NP127is. This image is a stack of 18 eight-minute exposures that were calibrated, defect-corrected and stacked using AIP4Win Version 2. A Rayleigh histogram shaping was used to bring out the faint background details of IC1318. This image has been resampled down from its original size of 4008x2672.