Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  NGC 2841
NGC 2841, Kyle Butler
NGC 2841
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NGC 2841

NGC 2841, Kyle Butler
NGC 2841
Powered byPixInsight

NGC 2841

Equipment

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Acquisition details

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Description

Exposure Details

90x 120s L (53 gain, 10 offset, bin 1x1)

40x 60s R (53 gain, 10 offset, bin 2x2)

40x 60s G (53 gain, 10 offset, bin 2x2)

40x 60s B (53 gain, 10 offset, bin 2x2)

3.7 hours total integration time

Processing

Processed each channel individually

Frames calibrated and stacked in PixInsight, drizzle 2x

DynamicCrop to trim borders from dithering

DynamicBackgroundExtraction on each channel

Deconvolution on Luminance channel

EZ Processing Suite EZDenoise on each channel

Combined RGB using ChannelCombination

BackgroundNeutralization, ColorCalibration, and SCNR on RGB image

Stretched RGB to non-linear using MaskedStretch

Stretched L to non-linear using HistogramTransformation

Added L to RGB using LRGBCombination with Chrominance noise reduction enabled

ColorSaturation with masking

CurvesTransformation

Final noise reduction and local contrast enhancement in Photoshop

Comments

Sky plot

Sky plot

Histogram

NGC 2841, Kyle Butler