Limit of short integration on SH2-129 and OU4 (Des McMorrow)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B152 · HD200205 · HD200386 · HD201047 · HD201063 · HD201344 · HD201429 · HD202214 · HD202380 · HD202519 · HD203025 · HD203232 · HD203265 · HD203338 · HD203374 · HD203376 · HD203534 · HD203550 · HD203551 · HD203574 · HD203627 · HD203956 · HD239605 · HD239618 · LBN 441 · LBN 445 · LBN 446 · LBN 449 · LBN 453 · LDN 1119 · And 2 more.

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Limit of short integration on SH2-129 and OU4

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Limit of short integration on SH2-129 and OU4

Frustrated on multiple fronts with my attempts to obtain reasonably long integration - tens of hours - on sh2-129 and ou4, in the end
I decided to process the miserable amount of data I managed to scrape together.

The present image is the result.

It comprises:

Ha, 2.5 hrs Baader 4nm, Bortle 5/6 skies in Yorkshire, August 2022
O, 1 hr Baader 4nm, Bortle 2/3 skies NW France, September 2021
Redcat 51, ASI2600MM Pro, Gain 100, -5C
CEM40, SW GTI

Total integration 3.5 hrs.

Processed in PI. Here I believe that the marvellous noiseXterminator plug in helped in turning what I expected to be a sow's ear into
a (poor!) imitation of a silk purse.

I think the dark skies where the O was recorded also make a huge difference. Also, being able to cleanly extract the squid's nebulosity using starXterminator played a decisive role. Kudos all round to Russell Croman.

For the avoidance of any misunderstanding - there is no substitute for long integration if the objective is to produce images of the highest quality which is certainly my desire.

The present example is more a note to self, and to anyone else who might be vaguely interested, to always look at what data you have - it might surprise you.

Yorkshire Astro Imaging

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Status	Advanced success
Started	...
Astrometry.net job	6272033
PixInsight job	NFI9WWMQNSTI5DHAD2V02YZ2JJCUDNRR
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h10m02s.67
RA (top/left)	20h57m57s.82
RA (top/right)	20h58m42s.34
RA (bottom/right)	21h20m31s.92
RA (bottom/left)	21h23m05s.51

Dec (center)	+60°07′00″.8
Dec (top/left)	+62°25′56″.9
Dec (top/right)	+57°48′26″.7
Dec (bottom/right)	+57°44′48″.5
Dec (bottom/left)	+62°21′18″.1

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Limit of short integration on SH2-129 and OU4

Limit of short integration on SH2-129 and OU4

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Limit of short integration on SH2-129 and OU4

Limit of short integration on SH2-129 and OU4

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