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

Image of the day 03/15/2021

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    Bubble Nebula (NGC 7635, Sh2-162, Caldwell 11), Gary Lopez
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    Bubble Nebula (NGC 7635, Sh2-162, Caldwell 11)

    Image of the day 03/15/2021

    Getting plate-solving status, please wait...
      Bubble Nebula (NGC 7635, Sh2-162, Caldwell 11), Gary Lopez
      Powered byPixInsight

      Bubble Nebula (NGC 7635, Sh2-162, Caldwell 11)

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      Description

      Located in the constellation, Cassiopeia, the Bubble Nebula was created by stellar winds from the massive, hot star, SAO 20575. The bubble shape is made visible because the energy from the star causes the matter in surrounding molecular cloud to glow.

      I collected the data for this image over a month-long period in December 2020 and January 2021. I enjoyed pretty good seeing, with nearly all of the data ranging from HFR 2.1 to HFR 2.7, good quality for my WO FLT132 and ZWO ASI1600MM Pro combination. This is an SHO rendition with standard Hubble Palette color assignment.

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        Bubble Nebula (NGC 7635, Sh2-162, Caldwell 11), Gary Lopez
        Original
        Bubble Nebula (NGC 7635, Sh2-162, Caldwell 11), Gary Lopez
        B
        Bubble Nebula (NGC 7635, Sh2-162, Caldwell 11), Gary Lopez
        C
        Bubble Nebula (NGC 7635, Sh2-162, Caldwell 11), Gary Lopez
        E
      • Final
        Bubble Nebula (NGC 7635, Sh2-162, Caldwell 11), Gary Lopez
        F

      B

      Description: Tint tweak

      Uploaded: ...

      C

      Description: Fixed a tiny blown-out area that was only noticed by me and my dog, Jessie.

      Uploaded: ...

      E

      Description: Added an additional 3 hours of Ha and 2 hours of SII all at very low HFR, 2.1-2.4. Reprocessed to create multiple version, each optimized for the surface brightness of the bubble, and combined the optimized regions of each version using PS layers.

      Uploaded: ...

      F

      Description: Updated noise control

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      Bubble Nebula (NGC 7635, Sh2-162, Caldwell 11), Gary Lopez