Cassiopeia A Supernova Remanent (RGB+SOO) (Ruediger)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD240289

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Cassiopeia A Supernova Remanent (RGB+SOO)

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Cassiopeia A Supernova Remanent (RGB+SOO)

Hello Friends,

due to the "Bad-Weather-Blues" I have processed my so far collected data of Cassiopeia A Supernova Remanent. It is a SN remnant in distance of about 11.000 light years. It is the strongest radio source on the sky. It was discovered in 1947 and it is one the youngest SNR known in our galaxy.

Processing this object is a nightmare. Expecting some Ha in the beginning, I noticed after the first frames there is almost no Ha signal, but very a very strong S2, which is probably caused by the high energy still present in the shock front.
So I stopped Ha and proceeded with O3 and S2 only. The image is a RGB and SOO composit. Like every photographer I am still not satisfied, but at least it is the best I can achieve from my location and available observing time. The data was collected over several nights in November. But I have to to admit, it is definitely one of the hardest objects I have ever tried. I have only found a hand full images of Cas A on AB, so I guess, I am not the only one struggling with this target

... Next time an easy one

Please enjoy!
Rüdiger

ASI 6200 MM Pro
Rarely Imaged Small DSOs
Astrophotography from home
Astrophotography Germany
Suburban Astrophotography
Imaged with APT
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Status	Advanced success
Started	...
Astrometry.net job	7215555
PixInsight job	PZ8BHSOOOWCOF9LDHH0IWD6MZ6ONMDYD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h23m33s.73
RA (top/left)	23h25m10s.70
RA (top/right)	23h21m57s.12
RA (bottom/right)	23h21m57s.81
RA (bottom/left)	23h25m09s.64

Dec (center)	+58°50′01″.2
Dec (top/left)	+58°59′47″.4
Dec (top/right)	+58°59′49″.6
Dec (bottom/right)	+58°40′08″.4
Dec (bottom/left)	+58°40′07″.2

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Cassiopeia A Supernova Remanent (RGB+SOO)

Cassiopeia A Supernova Remanent (RGB+SOO)

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Cassiopeia A Supernova Remanent (RGB+SOO)

Cassiopeia A Supernova Remanent (RGB+SOO)

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