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NGC 7635 The Bubble Nebula
Published in Astronomy Now Magazine September 2019
Published in Hampshire Sky Magazine September 2019

NGC 7635 is a popular emission nebula in the constellation Cassiopeia. The "bubble" is caused by a stellar wind from a massive hot young central star, SAO 20575.
Picture






TARGET
Nomenclature
:  NGC 7635, Bubble Nebula, Sharpless 162, Caldwell 11, Sh2-162
Right Ascension: 23:20:48.3
Declination: +61:12:06
Size: 15 arc min
Discovery: William Herschel in 1787

EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
IMAGE CAPTURE
5nm Ha: 17x900 bin 1x1, 31x1200 bin 1x1, 73x1800 bin 1x1
3nm OIII: 9x900 bin 1x1, 17x1200 bin 1x1, 24x1800 bin 1x1
Luminance: 26x600 bin 1x1
Red: 28x300 bin 1x1
Green: 28x300 bin 1x1
Blue: 30x300 bin 1x1
Total integration: 82.5 hours
Pixel scale: 0.533 arcsec/pixel
Field radius: 0.349 degrees
Capture dates: 12 June - 12 July 2019
Capture location:  Fregenal de la Sierra, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Click here for a larger version
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