NGC 7635 - Bubble Nebula - HOO narrowband (rhedden)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · NGC 7635

NGC 7635 - Bubble Nebula - HOO narrowband, rhedden

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NGC 7635 - Bubble Nebula - HOO narrowband

Revision title: 2023 reprocess

Powered byPixInsight

NGC 7635 - Bubble Nebula - HOO narrowband

Revision title: 2023 reprocess

This image of NGC 7635 was started in my light-polluted back yard in Lubbock TX and finished on a dark hilltop in upstate NY a year later. H-alpha data were taken from both sites. The H-alpha subs from the dark site had noticeably better contrast. The O-III subs were shot from the dark hilltop. This image is a tremendous improvement over my old Bubble Nebula image shot with the same telescope in LRGB. Part of the improvement is due to the narrowband filters, which provide tiny stars and better contrast, and part of the improvement is due to having a more sensitive camera now.

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B

Title: 2023 reprocess

Description: I decided to reprocess this image with modern software while I'm waiting for smoke and rainy weather to depart. I've used AI noise reduction (Topaz) on the revision, but I don't use its sharpening algorithms. I reduced the contrast just a bit in this version to provide a softer appearance. Now that I have Chroma H-alpha and O-III filters, I'd love to image this nebula again with longer integration time - but I'm going to need those Canadian wildfires to cooperate!

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NGC 7635 - Bubble Nebula - HOO narrowband

Revision title: 2023 reprocess

NGC 7635 - Bubble Nebula - HOO narrowband

Revision title: 2023 reprocess

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NGC 7635 - Bubble Nebula - HOO narrowband

Revision title: 2023 reprocess

NGC 7635 - Bubble Nebula - HOO narrowband

Revision title: 2023 reprocess

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