M31 October 6th 2013

Shotdate: October 6th 2013

Camera: Nikon D3x

Optics: NIKKOR 80-400mm f4.5-5.6 @ 400mm f7.1

ISO-speed: 1600

Exposure per sub: 300 seconds

Mount: SkyWatcher NEQ6 Pro

guiding: LVI Smartguider2 on 500mm 90mm APO

Stacked in DeepSkyStacker:

Stacking mode: Standard

Alignment method: Bicubic

Stacking 41 frames - total exposure: 3 hr 25 mn 6 s

Per Channel Background Calibration: Yes

Method: Auto Adaptive Weighted Average (Iterations = 5)

Offset: 108 frames exposure: 1/8000 s

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

Dark: 28 frames exposure: 5 mn 0 s

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

Flat: 46 frames exposure: 1/2 s

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

Post-processing in PixInsight 1.7

 

Done