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

Image of the day 09/30/2019

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    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