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

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)
Helix Nebula NGC 7293, Alastairmk
Helix Nebula NGC 7293
Powered byPixInsight

Helix Nebula NGC 7293

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Equipment

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Acquisition details

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Description

Large, bright planetary nebula in Aquarius. Imaged from New Zealand in May 2020.

Ha and OIII 10 minute subframes acquired on ZWO ASI1600MM camera cooled to -26C at gain 100 (0.095e-/ADU).

Processing with Pixinsight:

Weighted Average Batch Preprocessing

Mure Denoise

Dynamic Crop

Dynamic Background Extraction

DeConvolution (50 iterations) with external PSFImage, maximum of three StarMasks, and image masks for each filter.

HistrogramTransform for each filter

ColourCombination

MultiStateLinearTranformation to sharpen

TGVDenoise for both lightness and chrominance channels

MorphologicalTransormation to lower star intensities

CurvesTransformation to fine-tune image

Comments

Sky plot

Sky plot

Histogram

Helix Nebula NGC 7293, Alastairmk

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