Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1795  ·  IC 1805  ·  IC 1831  ·  NGC 1027  ·  NGC 896
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IC 1805 - The Heart Nebula, SoundIdea
IC 1805 - The Heart Nebula
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IC 1805 - The Heart Nebula

Getting plate-solving status, please wait...
IC 1805 - The Heart Nebula, SoundIdea
IC 1805 - The Heart Nebula
Powered byPixInsight

IC 1805 - The Heart Nebula

Equipment

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Acquisition details

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Description

This project started as an equipment test and then as a dark personal joke since I'm going through some heart-related medical issues at the moment. It finally turned into a project worth keeping.

Processing

Starless SHO (Forax)
  • For each channel:
    • Calibrate and stack with drizzle 2x.
    • StarXTerminator, BlurXTerminator.
    • Iterative GeneralizedHyperbolicStretch and NoiseXTerminator when needed.

  • Combine the channels using Foraxx script.
  • Undo the curves/saturation transforms applied by the Foraxx script and redo them to my preference.
  • Background Neutralization.
  • DynamicCrop to crop the edges where stacking artifacts are present. Save a process icon so that the same crop can be reused.


RGB Stars
  • Combined the RGB channels using pixel math.
  • Stretched using arcsinh stretch.
  • Photometric Color Calibration process to fix the star colors.
  • Multiply with arcsinh stretched H-alpha stars.
  • Final tweaks in Curves Transformation.
  • Apply the same DynamicCrop process icon saved from SHO.

Final
  • Combine stars on top of SHO using PixelMath
    • Formula is a Photoshop-style screen blend: 1 - (1 - stars) * (1 - starless)

  • ICCProfileTransformation to lock-in the screen color profile.

Comments

Sky plot

Sky plot

Histogram

IC 1805 - The Heart Nebula, SoundIdea