M31 Andromeda system

Shot date: 31st October 2011

Location: Home, Teuge, NL

Camera: Nikon D3x

Optics: Celestron Edge HD 9,25"

Mount: Skywatcher NEQ6Pro

Guiding: LVI Smartguider 2

 

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Stacking in DeepskyStacker 3.3.2

 

DeepSkyStacker settings:

Stacking mode: Standard

Alignment method: Bicubic

Stacking 18 frames (ISO: 800) - total exposure: 18 mn 02 s

RGB Channels Background Calibration: Yes

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

 

Offset: 120 frames exposure: 1/8000 s

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

 

Dark: 20 frames exposure: 1 mn

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

 

Flat: 100 frames exposure: 1/3 s

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

 

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Postprocessing in PixInsight Core 1.7 Starbuck

 

DynamicBackgroundExtraction

ColorCalibration

HistogramTransformation (11 times)

HDRComposition: Global context HDR composition of 11 images

HistogramTransformation

DarkStructureEnhance

ChannelExtraction: HDR_L

HistogramTransformation: HDR_L

ATrousWaveletTransform: HDR_L

CurvesTransformation: HDR_L: Masking

CurvesTransformation

ACDNR

ColorCalibration

HistogramTransformation

 

Done