Southern Ursa Major

Shotdate: 4-3-2013

Camera: Nikon D3x

Optics: 105mm f2.8 Micro Nikkor set a f4

Mount: AstroTrac

 

DeepSkyStacker settings:

 

95 frames (ISO: 1600) - total exposure: 1 hr 38 mn 10 s

 

RGB Channels Background Calibration: Yes

Per Channel Background Calibration: No

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

 

Offset: 108 frames exposure: 1/8000 s

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

 

Dark: 16 frames exposure: 1 mn 1 s

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

 

Flat: 24 frames exposure: 1/15 s

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

 

Post-processing in PixInsight Core 01.07.06.0793 Starbuck (x86_64)

 

DynamicCrop

 

DynamicBackgroundExtraction

 

8 times:

ChannelExtraction

ATrousWaveletTransform: Processing view: L

HistogramTransformation: Processing view: Autosave_DBE

L: Masking from swap files...

 

HistogramTransformation for getting a better background

Done