NGC 7293 = Helix Nebula - Revisited #4 (Gary JONES)

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: HD212783 · HD212949 · HD212970 · HD212980 · HD213032 · HD213055 · HD213056 · HD213069 · HD213070 · HD213432 · Helix Nebula · NGC 7293

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NGC 7293 = Helix Nebula - Revisited #4

Powered byPixInsight

NGC 7293 = Helix Nebula - Revisited #4

Here is another image of the Helix Nebula - this time using a UHC filter, and longer subs.

It's very helpful to use the same target when experimenting with camera settings and post-processing techniques.

A total of 90 subs were stacked using SiriL, which did a great job of choosing the best 45 images, based on FWHM < 3.0. The poor quality of most of the eliminated subs was caused by a rather unfortunately located palm tree.

The SiriL stack was then processed using Star Tools, and fine-tuned using Affinity Photo.

I'm quite pleased with the clarity of this image - and the more natural colour, the improved nebulosity, and faint visibility of the nebula's halo.

Australian Astrophotographers
Mac Users Group

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Status	Advanced success
Started	...
Astrometry.net job	6311896
PixInsight job	QD0WBV2KQGB1B5FDI9NZ57MJUJ7SR8CB
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h29m39s.67
RA (top/left)	22h32m25s.13
RA (top/right)	22h31m33s.80
RA (bottom/right)	22h26m56s.23
RA (bottom/left)	22h27m45s.31

Dec (center)	-20°50′20″.10
Dec (top/left)	-21°35′20″.1
Dec (top/right)	-19°57′53″.9
Dec (bottom/right)	-20°05′29″.7
Dec (bottom/left)	-21°42′55″.0

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NGC 7293 = Helix Nebula - Revisited #4

NGC 7293 = Helix Nebula - Revisited #4

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NGC 7293 = Helix Nebula - Revisited #4

NGC 7293 = Helix Nebula - Revisited #4

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