Celestial hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  NGC 4298  ·  NGC 4302
A pair of galaxies - NGC4298 and NGC4302, Kyle Butler
A pair of galaxies - NGC4298 and NGC4302
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A pair of galaxies - NGC4298 and NGC4302

A pair of galaxies - NGC4298 and NGC4302, Kyle Butler
A pair of galaxies - NGC4298 and NGC4302
Powered byPixInsight

A pair of galaxies - NGC4298 and NGC4302

Equipment

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Acquisition details

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Description

Exposure Details

150x 60s L (53 gain, 10 offset, bin 1x1)

50x 20s R (53 gain, 10 offset, bin 2x2)

50x 20s G (53 gain, 10 offset, bin 2x2)

50x 20s B (53 gain, 10 offset, bin 2x2)

3.3 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

MultiscaleLinearTransform noise reduction on each channel with luminance mask

Combined RGB using ChannelCombination

BackgroundNeutralization, ColorCalibration, and SCNR on RGB image

Stretched RGB and 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

A pair of galaxies - NGC4298 and NGC4302, Kyle Butler