NGC 281 - HOO - SHO - HSO (NGC281-SHO) (Rich Sky)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1590 · LBN 615 · LBN 616 · NGC 281 · PGC 137305 · Sh2-184 · TYC3663-1007-1 · TYC3663-1117-1 · TYC3663-1119-1 · TYC3663-1231-1 · TYC3663-1231-3 · TYC3663-1251-1 · TYC3663-1289-1 · TYC3663-1463-1 · TYC3663-1739-1 · TYC3663-185-1 · TYC3663-2103-1 · TYC3663-2192-1 · TYC3663-2203-1 · TYC3663-2219-1 · TYC3663-2417-1 · TYC3663-2422-1 · TYC3663-349-1 · TYC3663-367-1 · TYC3663-371-1 · TYC3663-375-1 · TYC3663-451-1 · TYC3663-479-1 · TYC3663-481-1 · TYC3663-483-1 · And 35 more.

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NGC 281 - HOO - SHO - HSO (NGC281-SHO)

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NGC 281 - HOO - SHO - HSO (NGC281-SHO)

NGC 281 in HOO and SHO and HSO,
Near 5 hours of Ha and O-III.

Original is HOO
version C is SHO
Version D is HSO

NGC 281 reminds me very much of the 'Rosette' nebula with a star cluster in a cavity with surrounding cloud of ionized hydrogen.

The tail of the histogram is a processing I did to de-ring the stars, it introduced some colors. I will have to refine my work flow.

Clear skies

Original
D

D

Description: HSO version 6h

Uploaded: ...

Schmidt-Cassegrain Telescope (SCT) Imagers
Reflecting Telescope Group

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Status	Advanced success
Started	...
Astrometry.net job	5167347
PixInsight job	MLTRDM0BP9O2BCLKF4X9HSF11BVWOOGL
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h52m42s.62
RA (top/left)	00h49m58s.64
RA (top/right)	00h52m39s.72
RA (bottom/right)	00h55m27s.28
RA (bottom/left)	00h52m45s.52

Dec (center)	+56°39′02″.1
Dec (top/left)	+56°32′41″.6
Dec (top/right)	+56°15′36″.10
Dec (bottom/right)	+56°45′10″.1
Dec (bottom/left)	+57°02′28″.7

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NGC 281 - HOO - SHO - HSO (NGC281-SHO)

NGC 281 - HOO - SHO - HSO (NGC281-SHO)

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NGC 281 - HOO - SHO - HSO (NGC281-SHO)

NGC 281 - HOO - SHO - HSO (NGC281-SHO)

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Sky plot

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