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Contains:  The star 9Cas
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CTB1 - supernova remnant - in Cassiopeia - in Ha, 


CTB1 - supernova remnant - in Cassiopeia - in Ha

CTB1 - supernova remnant - in Cassiopeia - in Ha

Technical card

Resolution: 2749x2199 job: 1815426

RA center: 359.611 degrees

DEC center: 62.535 degrees

Pixel scale: 2.256 arcsec/pixel

Orientation: 269.715 degrees

Field radius: 1.103 degrees


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....



License: None (All rights reserved)

Sky plot

Sky plot


CTB1 - supernova remnant - in Cassiopeia - in Ha,