Celestial hemisphere:  Southern  ·  Constellation: Aquarius (Aqr)  ·  Contains:  Helix Nebula  ·  NGC 7293
NGC 7293 - Helix Nebula, Kyle Butler
NGC 7293 - Helix Nebula
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NGC 7293 - Helix Nebula

NGC 7293 - Helix Nebula, Kyle Butler
NGC 7293 - Helix Nebula
Powered byPixInsight

NGC 7293 - Helix Nebula

Equipment

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Acquisition details

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Description

Exposure Details

25x 300s Ha (111 Gain, 10 Offset, Bin 1x1)

35x 300s OIII (111 Gain, 10 Offset, Bin 1x1)

50x Darks and flats for calibration

5 hours total integration time

Processing

Processed each channel individually

Frames calibrated and stacked in PixInsight, drizzle 2x

DynamicCrop to remove border from dithering

DynamicBackgroundExtraction on each channel

MultiscaleLinearTransform noise reduction on each channel with luminance mask

Stretched Ha and OIII to non-linear using HistogramTransformationFunction

Combined into RGB image using PixelMath (Red = Ha, Green = OIII, Blue = OIII)

ColorSaturation with masking

CurvesTransformation

Comments

Sky plot

Sky plot

Histogram

NGC 7293 - Helix Nebula, Kyle Butler