Ghost of Cassiopeia: Extended nebulosity in widefield HaRGB (Des McMorrow)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 26 Cas · 26 ups01 Cas · 27 Cas) · 27 gam Cas · 28 Cas) · 28 ups02 Cas · Cassiopeia · HD236578 · HD236592 · HD236632 · HD4179 · HD4362 · HD4404 · HD4488 · HD4561 · HD4562 · HD4601 · HD4674 · HD4717 · HD4768 · HD4817 · HD4931 · HD5015 · HD5071 · HD5149 · HD5233 · HD5342 · HD5408 · HD5409 · HD5410 · And 58 more.

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Ghost of Cassiopeia: Extended nebulosity in widefield HaRGB

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Ghost of Cassiopeia: Extended nebulosity in widefield HaRGB

This started out as a session to test the guiding of my new ZWO AW5 mount.
When running 5mins subs with the 2600mm and a Baader 3.5nm Ha filter I was pleasantly surprised to see extended regions
of nebulosity in the vicinity of IC63. This is not something I have seen before in many images although it could be that I have not done
my homework well enough!

I decided to add some RGB with the 2600mc and the resulting HaRGB is what has been uploaded.
I think that the extended nebulosity is reasonably well rendered considering that it is quite faint..

The AW5 is proving to be an excellent l mount -let's hope it lasts the course. Beautifully engineered and using strain wave gears there is no balance to be performed and no counter weights making it extremely quick to setup and takedown. With minimal tweaking it purred along at 0.4-0.6 arc seconds for hours on end.

Original
B
Final
C

Yorkshire Astro Imaging
WO Redcat 51 Group

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Status	Advanced success
Started	...
Astrometry.net job	6533979
PixInsight job	QL243XBU476VNYMWLQRQL490L9QQ22RP
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h59m23s.30
RA (top/left)	00h44m09s.11
RA (top/right)	00h45m33s.22
RA (bottom/right)	01h12m15s.21
RA (bottom/left)	01h15m37s.84

Dec (center)	+60°53′55″.2
Dec (top/left)	+63°31′20″.1
Dec (top/right)	+58°15′45″.5
Dec (bottom/right)	+58°11′12″.4
Dec (bottom/left)	+63°26′05″.6

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Ghost of Cassiopeia: Extended nebulosity in widefield HaRGB

Ghost of Cassiopeia: Extended nebulosity in widefield HaRGB

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Ghost of Cassiopeia: Extended nebulosity in widefield HaRGB

Ghost of Cassiopeia: Extended nebulosity in widefield HaRGB

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