Catching Light

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Dan Lessmann

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NGC 7635, The Bubble Nebula


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The bubble nebula is an emission nebula located in the constellation Cassiopeia.  At the center of the nebula is quite literally a bubble of gas being blown by the solar winds of bright star BD+60 2522 within the bubble and born from the gas of the nebula.  The growing bubble is currently about 10 light years across and is somewhat contained by the surrounding molecular cloud.  The nebula and molecular cloud are about 11,000 light years distant.


Date:  10/3/2008

Location:  Okie-Tex Star Party

Telescope:  LX200 10" SCT @ f/6.3

Mount:  AP-1200 GTOCP3

Camera:  Hutech Modified Canon 350D @ ISO 800

Exposure Count:  28 x 10 min, 280 minutes total exposure

Guiding:  SBIG ST402ME, CCDSoft

Post Processing:

ImagesPlus:  Dark and flat calibration, align and combine, digital development

Photoshop CS3:  Smart sharpen, levels

NeatImage:  Noise reduction

Last Updated: 11/12/2014  -  Copyright 2004-2013 by Dan Lessmann.  All rights reserved.  Please click here for my usage policy.