Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  48 sig Ori  ·  50 zet Ori  ·  Alnitak  ·  B33  ·  Flame Nebula  ·  Horsehead nebula  ·  IC 434  ·  IC 435  ·  LBN 953  ·  LBN 954  ·  NGC 2023  ·  NGC 2024  ·  Orion  ·  Orion B  ·  Sh2-277  ·  The star Alnitak (ζOri)  ·  The star σOri
Horsehead & Flame Nebulae - NB - HSO, Greg Mason

Horsehead & Flame Nebulae - NB - HSO

Horsehead & Flame Nebulae - NB - HSO, Greg Mason

Horsehead & Flame Nebulae - NB - HSO

Equipment

Loading...

Acquisition details

Loading...

Description

PixInsight Workflow

Pre-Processing:

Master Super Bias from library.
Master Dark from library.
Master Flats per set from Super Bias and Master Dark Flat from library.

ImageCalibration
CosmeticCorrection
SubframeSelector (Weight, choose reference files and approve)
StarAlignment (Generate Drizzle Data)
LocalNormalization
ImageIntegration (Modify Drizzle Data)
DrizzleIntegration

Now have individual, unstretched Ha, Sii and Oiii files.

Post-Processing:

StarAlignment
DynamicCrop
DynamicBackgroundExtraction
LinearFit
TGVDenoise
MultiScaleMedianTransform
ArcsinhStretch
ChannelCombination (Ha - Red, Sii - Green, Oiii - Blue)

Now working with stretch RGB file.

BackgroundNeutralization
Invert Image
SCNR (Green to remove magenta from stars)
InvertImage
CurvesTransformation to adjust Hue to taste.

Starnet to create starless image.
PixelMath to adjust starless image (1-(1-$T)*(1-$T) )
HistogramTransformation on starless image to increase contrast

PixleMath to blend starless image with RGB (F=0.4;  (1-(1-$T)*(1-s)*F)+($T*~F) )
LocalHistogramEqualization
MultiscaleLinearTransform
CurvesTransformation to adjust saturation, mask, as needed
MorphologicalTransformation for star reduction

Comments

Sky plot

Sky plot

Histogram

Horsehead & Flame Nebulae - NB - HSO, Greg Mason