C/2009 P1 Garradd 25th feb. 2012

It's too bad that when you want your equipment to run while you are sleeping it starts to fail on you. Out of over 200 images shot in this serie, I only had 2 that I could use, because of a failing connection which cause my mount and guiding to stop working.

 

Shot date: 25-02-2012

Shot time: 0:23 cet

Camera: Nikon D3x

Optics: NIKKOR 1000mm f11

Mount: SkyWatcher NEQ6 Pro

Guiding: LVI SmartGuider 2

 

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Stacked in DeepSkyStacker 3.3.2

 

Stacking mode: Standard

Alignment method: Bicubic

Stacking 2 frames (ISO: 3200) - total exposure: 1 mn 0 s

RGB Channels Background Calibration: Yes

Per Channel Background Calibration: No

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

 

Offset: 29 frames exposure: 1/8000 s

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

 

Dark: 53 frames exposure: 30 s

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

 

Flat: 40 frames exposure: 1/40 s

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

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Postprocessing in PixInsight 1.7

 

DynamicBackgroundExtraction

HistogramTransformation

ColorCalibration

(Extracting L-mask and applied a HistogramTransformation and ATrousWaveletTransform to it)

HistogramTransformation (masked)

CurvesTransformation (masked)

ACDNR

Done