NGC 7635, Bubble Nebula (mhtandy)

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

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NGC 7635, Bubble Nebula

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NGC 7635, Bubble Nebula

This is my first serious attempt at this object, and I wanted to see how this camera would perform with no filter at all. I thought it did well for this amount of exposure time (for nebulosity), but I had stars that were bloated and over-exposed. I thought 90 second exposures would help with that, but I may need to go lower than that next time. I'll also have to experiment with the gain setting. I tried several iterations of BlurXTerminator, but couldn't get rid of the giant halos on the larger stars - so finally went with Photoshop for stars only, with just a slight stretch. The learning continues...

UPDATE: For broadband imaging, I'll be using a UV-IR filter from now on. The glass covering this camera's sensor has either a UV-IR or just an IR filter (getting conflicting info online about that), but that doesn't seem to do as good of a job as the one I've added on for previous images.

Original
Final
G

G

Description: Processed again in GHS, and did the best I could at reducing star bloat. I think details in the Bubble turned out better in this version.

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Status	Advanced success
Started	...
Astrometry.net job	8456568
PixInsight job	RI8F13WE3ONCW8M7HRWU0NVO0OJMJQV5
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h20m36s.404
RA (top/left)	23h22m47s.733
RA (top/right)	23h18m36s.650
RA (bottom/right)	23h18m27s.440
RA (bottom/left)	23h22m34s.950

Dec (center)	+61°09′48″.95
Dec (top/left)	+61°23′12″.96
Dec (top/right)	+61°24′37″.86
Dec (bottom/right)	+60°56′17″.58
Dec (bottom/left)	+60°54′54″.65

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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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