NGC281-Ha-SHO-image by Uwe Deutermann (Adel Kildeev)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1590 · LBN 611 · LBN 615 · LBN 616 · LBN 621 · NGC 281 · Sh2-184

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NGC281-Ha-SHO-image by Uwe Deutermann

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NGC281-Ha-SHO-image by Uwe Deutermann

Uwe kindly provided me with his fantastic SHO data for Pacman nebula, 120 secx100 in Ha, OIII and SII each, 700 Mb in total. My computer gets mad as well as Fitswork and Maxim

I am learning to work with such huge data-do not judge me, histograms for ASI 6200 are unknown to me, so I pushed hard histograms in Maxim to stretch channels correctly.
Processing: Maxim6DL, Fitswork

B

Description: Re-processed as per advices of Uwe Deutermann: cropped image, removed purple halos, reduced greenish tone etc. My processing software (Fitswork and Maxim) are outdated, they do not proper show histograms with new camera' driver (histograms looks so thin so impossible to work before histogram stretch), probably the ASI 1600 problem is the similar, instead 16-bit I get only 8-bit. Still a lot to learn about noise reduction and sharpening.

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C

Description: I am testing new program SiriL- it gives better and more natural histogram stretch over Maxim DL5, used more argessive sharpening and noise reduction in the end.

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D

Description: change a bit color palette, less greenish color

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F

Description: Additional processing in PI: deconvolution and nose reduction wavelets

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G

Description: re-processing, better blue tone in the middle

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H

Description: As per Uwe's advices-deconvolution, star mask, noise reduction in the PI

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I

Description: final touch

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Status	Advanced success
Started	...
Astrometry.net job	5201902
PixInsight job	3U460XG7IKPHRFHU2042FSBC0X1MAQAO
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h52m55s.955
RA (top/left)	00h58m56s.335
RA (top/right)	00h46m12s.654
RA (bottom/right)	00h47m08s.425
RA (bottom/left)	00h59m23s.345

Dec (center)	+56°41′18″.10
Dec (top/left)	+57°27′10″.70
Dec (top/right)	+57°20′16″.78
Dec (bottom/right)	+55°54′23″.15
Dec (bottom/left)	+56°01′02″.61

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NGC281-Ha-SHO-image by Uwe Deutermann

NGC281-Ha-SHO-image by Uwe Deutermann

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NGC281-Ha-SHO-image by Uwe Deutermann

NGC281-Ha-SHO-image by Uwe Deutermann

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I

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