Jim Burnell's CCD Images - NGC7293 in Hydrogen-alpha Light Clicking on an image will display a high-resolution view.

 

Hydrogen-α
Object: NGC7293 The Helix Nebula	Planetary Nebula	Const.: Aquarius
Camera: SBIG STL11000M	Scope: Tele Vue TV-102iis	Mount: Losmandy Titan
Filter(s): Hα	Exposure: 8x8m	0.8x Reducer-Corrector
This image shows NGC7293, The Helix Nebula in Aquarius. This image was acquired using an SBIG STL11000M CCD camera mounted on a Tele Vue TV-102iis with a 0.8x reducer-corrector. This image is a stack of 8 eight-minute exposures taken through a Hydrogen-alpha filter. The images were calibrated, defect-corrected and stacked using AIP4Win Version 2. This image has been cropped down from its original size of 4008x2672.

 

Hydrogen-α
Object: NGC7293	The Helix Nebula - Planetary Nebula	Const.: Aquarius
Camera: SXV-H9	Scope: Tele Vue NP-101	Mount: Losmandy Titan
Filter(s): Hα	Exposure: 8x16m	blank
The Helix Nebula, NGC7293 in Aquarius. This image is a stack of 8 sixteen minute exposures shot through a Hydrogen-alpha filter. The exposures were acquired using an SXV-H9 CCD camera on a Tele Vue NP-101 4" f/5.4 refractor. The exposures were not calibrated, just filtered for hot pixels and stacked using AIP4WIN. This image has been resampled down from its original size of 1392x1040.