NGC 7635 - Bubble Nebula (Torben van Hees)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · HD220057 · LBN 548 · LBN 549 · LDN 1231 · NGC 7635 · Sh2-162

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NGC 7635 - Bubble Nebula

Link: http://astro.van-hees.name

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NGC 7635 - Bubble Nebula

Link: http://astro.van-hees.name

The Bubble Nebula is located in a molecular cloud in the constellation Cygnus. The stellar wind from the star SAO 20575, which can be seen close to the center, creates the bubble, while the light from the star excites it to glow. This is the best image of four strategies, for all combinations of stacking all or best 20% and using IntegerResampling on the stacked image after MureDenoise or not. Turns out, the sharpest and still smoothest image was with image selection and IntegerResampling.

I leave the above paragraph as documentation. Turns out, the best approach was to stack with the new grading algorithms in Pixinsight and learn more about postprocessing for two years. NoiseXTerminator helped a bunch, too.

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Description: Rework with 2 years more experience.

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Status	Advanced success
Started	...
PixInsight job	EQVQ0D03SYQTNQABSPXZ85043JGATQKD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h20m36s.379
RA (top/left)	23h17m56s.193
RA (top/right)	23h23m08s.411
RA (bottom/right)	23h23m18s.945
RA (bottom/left)	23h18m02s.263

Dec (center)	+61°10′41″.64
Dec (top/left)	+60°56′56″.91
Dec (top/right)	+60°55′37″.38
Dec (bottom/right)	+61°24′14″.20
Dec (bottom/left)	+61°25′35″.69

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NGC 7635 - Bubble Nebula

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NGC 7635 - Bubble Nebula

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