NGC7000 North America Nebula - SHO palette (Pam Whitfield)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B355 · LBN 348 · LBN 349 · LBN 354 · LBN 356 · LBN 373 · LDN 935 · NGC 6997 · NGC 7000 · North America nebula · Sh2-117

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NGC7000 North America Nebula - SHO palette

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NGC7000 North America Nebula - SHO palette

This is a bit of a test image (ish). North America nebula in narrow band using the reducer to see if the terrible stripes and artefacts I've been struggling with have disappeared...

They have :-)

Some halos remain from the OIII filter but after the previous mess I'll gladly live with those.

My problem with the narrow-band flats has mostly been solved with reckless use of a black Sharpie marker pen on the outside edge of the filters and some very black paint inside various parts of the focuser and scope....

This was also the first major test using a new Skywatcher 72ED with ADM rings as the guidescope - the money sink grows again......! (going to have to update the picture again....)

8x 600s each for Ha, OIII and SII at -15degC

quick processing after integration in Astropixel Processor adding a small amount of Ha into the blue and red channels

Original
Final
B

B

Description: After some minor fiddling in PSPro

Uploaded: ...

QHY Users Group
Yorkshire Astro Imaging

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Status	Advanced success
Started	...
Astrometry.net job	2235320
PixInsight job	4ZV273E38VZQHE2SIUAXZATXVU537Q9I
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h58m45s.66
RA (top/left)	21h02m42s.49
RA (top/right)	20h55m10s.53
RA (bottom/right)	20h54m55s.83
RA (bottom/left)	21h02m14s.34

Dec (center)	+44°00′35″.8
Dec (top/left)	+44°52′32″.7
Dec (top/right)	+44°55′26″.9
Dec (bottom/right)	+43°08′09″.6
Dec (bottom/left)	+43°05′20″.1

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NGC7000 North America Nebula - SHO palette

NGC7000 North America Nebula - SHO palette

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NGC7000 North America Nebula - SHO palette

NGC7000 North America Nebula - SHO palette

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