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 trouble, Tom Gray
NGC 7635 - Bubble trouble, Tom Gray

NGC 7635 - Bubble trouble

Revision title: Astrosharpened

Getting plate-solving status, please wait...
NGC 7635 - Bubble trouble, Tom Gray
NGC 7635 - Bubble trouble, Tom Gray

NGC 7635 - Bubble trouble

Revision title: Astrosharpened

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Description

Taken on the only clear night in ages, between low pressure fronts, I managed to collate enough frames to provide a reasonable image of the bubble. I started with 600s exposures, but quickly reduced these to 120s, to try and preserve frames as the clouds scudded through, and to improve the overall SNR. I may (or not) add some colour to this in due course.

Captured using Nebulosity with a small dither between frames, aligned and stacked in Nebulosity, and processed in Startools 1.8 beta using a standard workflow.

This cosmic wonder is 7 LY across, and 7,100 LY away. Powered by a 4 million year old star (off centre in the image), which lights up the surrounding nebulosity; the bubble is forming from a stellar wind travelling at 4 million mph [Hubble site].

Comments

Revisions

  • NGC 7635 - Bubble trouble, Tom Gray
    Original
  • NGC 7635 - Bubble trouble, Tom Gray
    B
  • Final
    NGC 7635 - Bubble trouble, Tom Gray
    G

B

Title: Processed in Nebulosity

Description: The same data processed in Nebulosity v3 with power stretch and curves, followed by some unsharp masking, star and noise reduction. The image is cleaner and softer, but with less fine detail.

Uploaded: ...

G

Title: Astrosharpened

Description: Retrospective sharpening using George Lowry's amazing Deep Sky Detail Astrosharp AI tool
Pre-sharpened but final processed image using traditional tools in mouseover

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Sky plot

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Histogram

NGC 7635 - Bubble trouble, Tom Gray