Going deep on the Cocoon (Kevin Morefield)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B168 · Cocoon nebula · IC 5146 · Sh2-125 · VdB147

Image of the day 08/12/2017

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Going deep on the Cocoon

Image of the day 08/12/2017

Powered byPixInsight

Going deep on the Cocoon

IC 5146, the Cocoon Nebula, is a great collection interesting celestial sights. the glowing red hydrogen and blue reflection nebulae paid with a young star cluster and dark nebulae. There are even cameos by three small spiral galaxies. Interestingly, the star at the center of the nebula is believed to be only a few hundred thousand years old (at the time these photons were created) making it the star equivalent of a human baby perhaps weeks old.

This is an all LRGB combination comprised of 35 Luminance, 50 Red, 54 Green, 40 Blue all 600 seconds. Total integration 29.833 hours. It may seem odd that there is less Luminance time than color but the color is bin 1x1 and adding more really helped with noise in the dark nebula portions. That and I pruned Lum subs pretty heavily. One of the reasons I shot the color bin 1 is to be able to add it to the luminance as a synthetic blend but I have not done that yet so this is straight LRGB only.

Subs were calibrated in CCDStack, subsequently processed in PI with minimal DBE and TGV De-noise. No sharpening was applied as it seems to only add noise but not improve sharpness. A light motion blur de-convolution was applied in PI to resolve slightly out of round stars. Finishing touches in PS and Apple photos.

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Status	Advanced success
Started	...
Astrometry.net job	3049985
PixInsight job	17HWY9UNMUCMPKGXPS16I44GEN00Z7LH
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h53m23s.895
RA (top/left)	21h56m48s.647
RA (top/right)	21h53m41s.535
RA (bottom/right)	21h49m58s.627
RA (bottom/left)	21h53m06s.527

Dec (center)	+47°16′03″.84
Dec (top/left)	+47°12′57″.35
Dec (top/right)	+47°50′49″.35
Dec (bottom/right)	+47°18′49″.59
Dec (bottom/left)	+46°41′16″.66

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Image of the day 08/12/2017

Going deep on the Cocoon

Image of the day 08/12/2017

Going deep on the Cocoon

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Image of the day 08/12/2017

Going deep on the Cocoon

Image of the day 08/12/2017

Going deep on the Cocoon

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