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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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Advanced success
Started	...
Astrometry.net job	6072246
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

NGC 7635 - Bubble Nebula

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NGC 7635 - Bubble Nebula

NGC 7635 - Bubble Nebula

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