Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Andromeda Galaxy  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224
Andromeda Galaxy (M31/NGC 224), Steven K. Wu
Andromeda Galaxy (M31/NGC 224)
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Andromeda Galaxy (M31/NGC 224)

Revision title: Andromeda Galaxy (M31/NGC 224)

Andromeda Galaxy (M31/NGC 224), Steven K. Wu
Andromeda Galaxy (M31/NGC 224)
Powered byPixInsight

Andromeda Galaxy (M31/NGC 224)

Revision title: Andromeda Galaxy (M31/NGC 224)

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Description

Andromeda Galaxy with satellite galaxies M32 (upper left of Andromeda Galaxy) and M110 (center below Andromeda Galaxy) from the dark Bortle 2 skies of Alabama Hills, California.

Comments

Revisions

  • Andromeda Galaxy (M31/NGC 224), Steven K. Wu
    Original
  • Final
    Andromeda Galaxy (M31/NGC 224), Steven K. Wu
    B

B

Title: Andromeda Galaxy (M31/NGC 224)

Description: Re-processed my Andromeda Galaxy (M31) image taken on 12/4/2021 with my updated PixInsight workflow.

PixInsight Pre-Processing: CosmeticCorrection, WeightedBatchPreprocessing (WBPP), SubframeSelector, StarAlignment, LocalNormalization, ImageIntegration, DrizzleIntegration

PixInsight Linear Image Processing: DynamicBackgroundExtraction (DBE), SpectrophotometricColorCalibration (SPCC), DynamicCrop, BlurXTerminator

PixInsight Non-Linear Image Processing: GeneralisedHyperbolicStretch (GHS) (initial soft stretch), SCNR (green reduction), NoiseXTerminator, StarXTerminator (create stars only and starless image), GeneralisedHyperbolicStretch (GHS) (slight stretch on stars only image), CurvesTransformation (color saturation on stars only image), GeneralisedHyperbolicStretch (GHS) (stretch starless image), CurvesTransformation (contrast adjustment), LocalHistogramEqualization, Sharpening (35% UnsharpMask + 35% MultiscaleLinearTransform (MLT) + 30% Original), CurvesTransformation (color adjustments), PixelMath (rescreen stars only and starless images), CurvesTransformation (final brightness, contrast, and color adjustment), NoiseXTerminator (final noise reduction)

Adobe Lightroom Classic: Crop, Export

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Sky plot

Sky plot

Histogram

Andromeda Galaxy (M31/NGC 224), Steven K. Wu