Jim Burnell's CCD Images - NGC7635 in Hydrogen-alpha Light
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Hydrogen-α
NGC7635 & M52 in Ha
Object: NGC7635
The Bubble Nebula - Emission Nebula
 Const.: Cassiopeia
Camera: SXV-H9 Scope: Tele Vue NP-101 Mount: Losmandy Titan
Filter(s): Hα Exposure: 10x8m Taken during a full moon
NGC7635 (the Bubble Nebula) and the open cluster M52 in Cassiopeia. The open cluster Czernik 43 is also visible, just below M52 on the left edge. This image is a stack of 10 eight minute exposures shot through a Hydrogen-alpha filter one day before a full moon. The exposures were acquired using an SXV-H9 CCD camera on a Tele Vue NP-101 4" f/5.4 refractor. The exposures were calibrated, defect-corrected and stacked using AIP4WIN, and an experimental sharpening filter was applied. This image has been resampled down from its original size of 1392x1040.