Pacman Nebula NGC281 in ForaxX-SHOL-L (Jim Lindelien)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD5005 · IC 1590 · LBN 615 · LBN 616 · NGC 281 · Sh2-184

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Pacman Nebula NGC281 in ForaxX-SHOL-L

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Pacman Nebula NGC281 in ForaxX-SHOL-L

Pacman Nebula NGC281 in ForaxX-SHOL-L

For this render I produced a synthetic L from an equal weighting of S, H and O after LinearFit in the usual ForaxX synthesis. Then I added an additional natural L channel to improve overall detail but especially in the shadows where SNR of the narrowband stacks is poorer than that of the natural L stack.

The star field is a 50/50 blend of the natural luminance channel and a PixelMath blended pseudocolor star field from SHO (=RGB) data, with final saturation turned further down so they don't compete too much with the colorful nebulosity.

Mount tracking at King rate. Dithered. Drizzle 2x stacked for post processing then rescaled for display at FWHM ~3 pixels.

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9-Dec-23 Ha SII SQM 21.61 18C Clear breezy
11-Dec-23 SII OIII Lum SQM 21.56 17C Clear breezy

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Final
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Description: Version including synthetic diffraction spikes.

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Schmidt-Cassegrain Telescope (SCT) Imagers
Narrowband imaging
Images from the EdgeHD Series
ASI 6200 MM Pro
CMOS Imagers

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Status	Advanced success
Started	...
Astrometry.net job	9273088
PixInsight job	0RWRANP6YO1598Y9NUL6QT1SRQS1D25L
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h52m44s.323
RA (top/left)	00h50m40s.384
RA (top/right)	00h50m47s.854
RA (bottom/right)	00h54m45s.368
RA (bottom/left)	00h54m43s.431

Dec (center)	+56°39′31″.87
Dec (top/left)	+57°05′06″.37
Dec (top/right)	+56°13′26″.32
Dec (bottom/right)	+56°13′50″.90
Dec (bottom/left)	+57°05′30″.81

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Pacman Nebula NGC281 in ForaxX-SHOL-L

Pacman Nebula NGC281 in ForaxX-SHOL-L

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Pacman Nebula NGC281 in ForaxX-SHOL-L

Pacman Nebula NGC281 in ForaxX-SHOL-L

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