Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  NGC 4627  ·  NGC 4631  ·  Whale Galaxy
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Whale under a Full Moon, Aaron Freimark
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Whale under a Full Moon

Getting plate-solving status, please wait...
Whale under a Full Moon, Aaron Freimark
Powered byPixInsight

Whale under a Full Moon

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Description

NGC 4631, the "Whale Galaxy," shot Easter evening under very clear skies. Being Easter/Passover, there was a nearly full moon. To compensate, I cropped this image close, and used Dynamic Background Extraction with abandon. 


Preprocessing
1. WeightedBatchProcessing
2. Create preview around galaxy
3. DrizzleIntegration with Region of Interest to crop to preview
4. Dynamic Background Extraction on R, G, B, L

L
1. EZ Decon
2. EZ Denoise
3. Histogram Transformation to stretch

RGB
1. LinearFit R & G to B
2. ChannelCombination
3. Color Calibration
4. EZ Soft Stretch
5. Convolution
6. LRGB Combination to apply L, with 0.3 saturation
7. Repeat LRGB Combination, with Color Noise Reduction
8. CurvesTransformation

Comments

Sky plot

Sky plot

Histogram

Whale under a Full Moon, Aaron Freimark