Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble nebula  ·  NGC 7635  ·  Sh2-162

Image of the day 09/30/2019

Getting plate-solving status, please wait...
bubble nebula NGC 7635 closeup, Christoph Lichtblau
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bubble nebula NGC 7635 closeup

Image of the day 09/30/2019

Getting plate-solving status, please wait...
bubble nebula NGC 7635 closeup, Christoph Lichtblau
Powered byPixInsight

bubble nebula NGC 7635 closeup

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Description

It's bad weather outside. So I decided for revision time. Watching on hubble heritage page today, I got the idea to try this one today....

I am often asked, how I managed the great resolution of the inner globular parts in the bubble. The answer is quite easy. Because of it's brightness I shoot some three second subs with higher gain I always use with my ASI 1600. Obviously I freezed the seeing with this....

update  :

added new data and reprocessed completely

Comments

Revisions

    bubble nebula NGC 7635 closeup, Christoph Lichtblau
    Original
  • Final
    bubble nebula NGC 7635 closeup, Christoph Lichtblau
    B

B

Title: NGC 7635 closeup revision with additional data

Description: Complete new processing with 4 hours of additional data taken with the edge11:
- choosing a wider field
- this time no cable holder cross in the dew cap- no additional spike data
- less noise reduction because of better and finer stack
- with much better SNR, better sharpening was possible
- more stars
- more deep signal and more detail

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bubble nebula NGC 7635 closeup, Christoph Lichtblau