NGC6888 - Crescent Nebula (Pete Mumbower)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · HD192003 · HD192020 · HD192102 · HD192123 · HD192163 · HD192182 · HD192303 · HD192361 · HD228139 · HD228152 · HD228153 · HD228185 · HD228186 · HD228198 · HD228205 · HD228243 · HD228261 · HD228262 · HD228289 · HD228290 · HD228304 · HD228311 · HD228324 · HD228376 · LBN 203 · NGC 6888 · Sh2-105

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NGC6888 - Crescent Nebula

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NGC6888 - Crescent Nebula

This is the main panel of a mosaic I am building of this and the Soap Bubble Nebula. First time doing a mosaic and this main piece just deserves its own posting. This is a HOO NB data with relatively a short RGB to get the stars looking "normal". Lot of credit goes to the "new" StarNet2 module in PI, it really made that star swap easy. Also this was the first time using Russel Croman's NoiseXTerminator, which is truly remarkable. That NR did an amazing job of just dealing with the noise and not altering anything I could find that was real date (or introduce fake).

What surprised me with this image was the area is awashed in OIII gas. At first I thought it was gradient or other issues, but looking at other deep images it is there too.

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	6143769
PixInsight job	W9L74L48IICOKJYPDJFEF3V59N5RDTMI
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h12m07s.660
RA (top/left)	20h10m48s.169
RA (top/right)	20h10m53s.420
RA (bottom/right)	20h13m25s.900
RA (bottom/left)	20h13m21s.826

Dec (center)	+38°20′11″.21
Dec (top/left)	+38°42′53″.40
Dec (top/right)	+37°56′54″.92
Dec (bottom/right)	+37°57′27″.60
Dec (bottom/left)	+38°43′24″.39

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NGC6888 - Crescent Nebula

NGC6888 - Crescent Nebula

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NGC6888 - Crescent Nebula

NGC6888 - Crescent Nebula

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