Sh2 86 Dynamic Narrowband Combination (Jerry Yesavage)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: HD185547 · HD185858 · HD185915 · HD186310 · HD344626 · HD344682 · HD344683 · HD344686 · HD344688 · HD344689 · HD344690 · HD344691 · HD344692 · HD344693 · HD344695 · HD344696 · HD344699 · HD344700 · HD344701 · HD344702 · HD344706 · HD344707 · HD344709 · HD344710 · HD344711 · HD344712 · HD344714 · HD344715 · HD344717 · HD344718 · And 59 more.

Sh2 86 Dynamic Narrowband Combination

Another recast of a Sharpless2 object. This time in addition to the CMOS and GHS I added in Dynamic Narrow-band Combination:

This is pretty complex and my second try but I realized a couple points:

1. You need to work on stretched and for me destarred/denoised images
2. The stretch on the O-III is crucial since that feeds into all the equations... hint stretch for all you are worth.

GHS Forum Discussion

From GalaxyMap:

The HII region NGC 6820 contains the radio source W55 and is ionised by the star cluster NGC 6823, which is part of the Vul OB1 association.

You can view a more detailed visual image here. The true nature of the region is perhaps best understood by viewing this spectacular Spitzer infrared image.

GENERAL NOTE ON SHARPLESS2 OBJECTS>>>>>>>>>>>>>

There are 313 Sh2 objects. All now imaged.

This is my collection:

Sharpless2

Wide-Angle Hydrogen Alpha Nikon Image Sh2 79-171

Please note there is also a Sharpless2 Group with now more than 2600 examples.

Sharpless2 Group

Other useful links include:

Gary Imm's Collection

GalaxyMap's Collection

The Sharpless Catalog

The MDW H-alpha Sky Survey

Reiner Vogel's detailed observing catalog

Hope you enjoy these obscure but interesting objects...

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Title: 2X Crop

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Status	Advanced success
Started	...
Astrometry.net job	6016715
PixInsight job	SV2F3ZYFDOKWEGBNAQDOOU1M8IBDBE6U
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h43m05s.929
RA (top/left)	19h47m47s.407
RA (top/right)	19h38m26s.239
RA (bottom/right)	19h38m27s.300
RA (bottom/left)	19h47m42s.532

Dec (center)	+23°16′58″.72
Dec (top/left)	+23°58′34″.46
Dec (top/right)	+23°59′21″.94
Dec (bottom/right)	+22°34′48″.99
Dec (bottom/left)	+22°33′52″.55

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Sh2 86 Dynamic Narrowband Combination

Sh2 86 Dynamic Narrowband Combination

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Sh2 86 Dynamic Narrowband Combination

Sh2 86 Dynamic Narrowband Combination

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