C4, aka Iris nebula (HOO version & Star Spikes version) (Dev (Dave) Prana)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD200099 · HD200775 · Iris Nebula · LBN 475 · LBN 487 · LDN 1168 · LDN 1170 · LDN 1172 · LDN 1173 · LDN 1174 · NGC 7023

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C4, aka Iris nebula (HOO version & Star Spikes version)

Revision title: C4, aka Iris nebula (HOO version)

Powered byPixInsight

C4, aka Iris nebula (HOO version & Star Spikes version)

Revision title: C4, aka Iris nebula (HOO version)

C4, aka NGC 7023, aka Iris nebula:
NGC 7023 is actually the star cluster within the nebula, but the cluster and the reflection nebula are one in the same. The nebula gets its trademark glowing blue appearance thanks to SAO 19158, the star responsible for lighting it up. An interesting characteristic of this object is the intense interstellar dust that surrounds NGC 7023, clearly blocking out the stars behind it. I was lucky enough to have a couple of back-to-back clear nights to be able to see this final result. This is the Hybrid HOO version, Stars de-emphasized, Stars-less and Stars with Spikes version:
18 x 60sec light subs
18 x 120sec light subs
18 x 180sec light subs
18 x 240sec light subs
30 darks, 30 flats, 30 dark flats per exposure set: 3 hours of data stacked, integrated and processed in Astro Pixel Processor, and post processed in Pixinsight and Paintshop Pro (PSP). Tested out the StarSpikes Pro 4 app, plug in module, in PSP, for the 1st time, you be the judge!
Equipment used: Sky-Watcher ED100 Esprit triplet, ZWO 294MC Pro main camera, Optolong L Pro filter, ASI Air Plus

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Title: C4, aka Iris nebula (HOO version)

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Status	Advanced success
Started	...
Astrometry.net job	6644229
PixInsight job	RJFZEHLB300F7LRSUT4CDRAAYKAIYXXM
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h01m46s.83
RA (top/left)	21h08m47s.70
RA (top/right)	20h54m29s.35
RA (bottom/right)	20h55m18s.81
RA (bottom/left)	21h08m29s.28

Dec (center)	+68°12′06″.9
Dec (top/left)	+69°09′05″.6
Dec (top/right)	+69°08′05″.2
Dec (bottom/right)	+67°14′03″.10
Dec (bottom/left)	+67°14′59″.1

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C4, aka Iris nebula (HOO version & Star Spikes version)

Revision title: C4, aka Iris nebula (HOO version)

C4, aka Iris nebula (HOO version & Star Spikes version)

Revision title: C4, aka Iris nebula (HOO version)

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C4, aka Iris nebula (HOO version & Star Spikes version)

Revision title: C4, aka Iris nebula (HOO version)

C4, aka Iris nebula (HOO version & Star Spikes version)

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