SH2-129 in RGB-Ha-OIII (Georg N. Nyman)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD201429 · HD202214 · HD202380 · HD239582 · HD239618 · LBN 445 · LBN 449 · LBN 453 · Sh2-129

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SH2-129 in RGB-Ha-OIII

Revision title: SH2-129 in RGB-Ha_OIII

Powered byPixInsight

SH2-129 in RGB-Ha-OIII

Revision title: SH2-129 in RGB-Ha_OIII

SH2-129 is a pretty and famous target - however, the OIII represents quite some challenge - it is very dim. It took me 6 nights for OIII only to get to that visibility - not at all perfect, but visible. The other wavelengths are easy - RGB with deep-color filteres from Astronomik und Ha with special filter for RASA work. Some Pixelmath in PixInsight, some Photoshop editing and here is the result.

Once the moon is almost gone, I most likely shall acquire more OIII date for a better definition... maybe :-)

The acquisition was done between June 11 and July 3 - one night RGB, two nights Ha and 6 nights OIII

Original
Final
B

B

Title: SH2-129 in RGB-Ha_OIII

Description: In addition to the previous one, I added three nights of gathering photons in OIII to make the squidd more visible and clearer. I think I achieved the target.... for this year, that´s it for me for that not very easy target. In total, I have processed 1027x120" OIII subs plus 480x120" Ha plus about 1 1/2 hours each for R.G und B.
Processing separately all channels in PixInsight, optimization in Photoshop and recombination in PixInsight.

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Status	Advanced success
Started	...
Astrometry.net job	6038225
PixInsight job	FNO0YZUZE6QRN7RGRBCHTP3OUVZADI4H
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h11m48s.23
RA (top/left)	21h06m48s.98
RA (top/right)	21h05m49s.73
RA (bottom/right)	21h17m08s.90
RA (bottom/left)	21h17m26s.17

Dec (center)	+59°59′07″.2
Dec (top/left)	+58°55′38″.8
Dec (top/right)	+60°58′33″.1
Dec (bottom/right)	+61°01′53″.4
Dec (bottom/left)	+58°58′47″.9

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SH2-129 in RGB-Ha-OIII

Revision title: SH2-129 in RGB-Ha_OIII

SH2-129 in RGB-Ha-OIII

Revision title: SH2-129 in RGB-Ha_OIII

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SH2-129 in RGB-Ha-OIII

Revision title: SH2-129 in RGB-Ha_OIII

SH2-129 in RGB-Ha-OIII

Revision title: SH2-129 in RGB-Ha_OIII

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