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I had 1 extra hour to burn before sunrise after night two on the Iris nebula which I will be posting later. I decided to shoot M31, got 40 mins of total integration in before the moon and the sun came to ruin the show. I plan to add 2-3 more hours to this later in the year.



#Equipment:

Scope | Orion XT8 Plus

Camera | ASI120MM-S

Mount | EQ Platform, custom made

Guidecam | N/A

Guidescope | N/A


#Integration Data:

Lights | 7000 frames at 5ms

Darks | N/A

Flats | N/A

Bias | N/A

#Processing

Processing in AutoStakkert 3 and Registax 6

#####Integration Phase

Align and Stack in AS3!

#####Initial Processing Phase

ChannelExtraction RGB

LinearFit (Fit two strongest channels to the weakest using the Statistics module)

ChannelCombination

DynamicCrop

DBE

BackgroundNeutralization

ColorCombination

#####Stretch Phase

MultiscaleLinearTransform (Initial NR phase)

Countless iterations of HistogramTransformation and CurvesTransformation to get an image I liked

ABE to kill residual background gradient from stretching

MultiscaleLinearTransform (Post NR)

ACDNR (Post NR)

#####Color and Background Phase

HistogramTransformation (Background Adjustments)

MultiscaleLinearTransform (Kill background colors)

HistogramTransformation (Color Balance shift)

CurvesTransformation (Contrast Enhancement)

ColorSaturation (Bring out selective colors in M31)

HistogramTransformation (Bring out blues slightly and shift color balance to blue, my personal preference)

MDRMultiscaleTransform (Peeling some brightness away from the core, which had blown out at this phase)

MultiscaleLinearTransform (Slight color enhancement)

CurvesTransformation (Contrast Enchancement)

#####Star Phase

MorphologicalTransformation (Make them stars smaller)

CurvesTransformation (Boosting star colors)

MorphologicalTransformation (Selectively masked the largest stars and reduced them separately)

#####Final Tweaks

SCNR (Slight green cast)

DarkStructureEnchance (Bring out those dust lanes!)

You can find some more images of mine on my Instagram: ATPhotography
     
 
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