Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1848  ·  IC 1871  ·  Sh2-199

Image of the day 02/21/2021

    IC1848 - IC1871 - Soul Nebula, Jon Bridges
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    IC1848 - IC1871 - Soul Nebula

    Image of the day 02/21/2021

      IC1848 - IC1871 - Soul Nebula, Jon Bridges
      Powered byPixInsight

      IC1848 - IC1871 - Soul Nebula

      Equipment

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      Acquisition details

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      Description

      The Soul Nebula spans roughly 100 light years across at 6,500 ly away. It doesn't quite fit into my smaller 183 sensor, but I enjoyed the additional detail from this camera's tiny pixels.

      I experimented with tone mapping this time, moving Ha to be more towards the red and OIII towards the green. For anyone curious, the pixel math expression used was:

      R: Ha*.45+SII*.55

      G: Ha*.6+OIII*.4

      B: OIII

      Thank you for checking out the result!

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      AstroPixelProcessor

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      Stacked with default settings except LNC set to 2nd degree with 3 iterations.

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      Pixinsight

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      1. Deconvolution

      2. TGV Denoise & MMT (Jon Rista method) used for noise reduction.

      3. STF Stretch applied.

      4. Temporary star removal for tone mapping.

      5. PixelMath SHO combine.

      6. Small 30% SNCR applied to remove slight green cast.

      7. Re-add stars back.

      8. Applied various curves/masks to enhance contrast.

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      Photoshop

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      1. Spot cleanup of small over-saturated stars.

      2. Smart Sharpening of just the details in IC 1871

      Comments

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      IC1848 - IC1871 - Soul Nebula, Jon Bridges