CTB1 - supernova remnant - in Cassiopeia - in Ha (Simon)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 9 Cas · HD224055 · HD224403 · HD224669 · HD224892 · HD224939 · HD225160 · LBN 576 · The star 9Cas

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CTB1 - supernova remnant - in Cassiopeia - in Ha

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CTB1 - supernova remnant - in Cassiopeia - in Ha

What a nightmare this was! I suffer from Bortle scale skies of around 8, and this coupled with how faint this object is, not to mention the mass of stars the sensor picked up during the imaging, this was so hard to image and process! I took an initial 4 frames at 15 minutes each, then upped it to 20 minutes due to the lack of detail - a total of 17 subs in all. In hindsight I wish I had gone for the suggested 30 minute subs to try and bring forth the faint nebulosity. It was taken through my 3" refractor and the Atik 460EX.

I really like this unique object and may try again using the 30 minute exposure length, but contrary to the forecast earlier this week, there appears to be no clear nights ahead, as we get near to no moon too!

Perhaps my PixInsight skills need improving, for objects like this....

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Status	Advanced success
Started	...
Astrometry.net job	1815426
PixInsight job	ET7F8ZB6HAXY96G5W6Q0FC3166V59RVG
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h58m26s.97
RA (top/left)	00h04m37s.19
RA (top/right)	00h04m13s.20
RA (bottom/right)	23h52m37s.25
RA (bottom/left)	23h52m20s.63

Dec (center)	+62°32′05″.2
Dec (top/left)	+63°22′55″.3
Dec (top/right)	+61°39′48″.9
Dec (bottom/right)	+61°40′12″.5
Dec (bottom/left)	+63°23′20″.3

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CTB1 - supernova remnant - in Cassiopeia - in Ha

CTB1 - supernova remnant - in Cassiopeia - in Ha

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CTB1 - supernova remnant - in Cassiopeia - in Ha

CTB1 - supernova remnant - in Cassiopeia - in Ha

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