Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  The star 9Cas
CTB1 in HOO+RGB, Erik Pirtala
CTB1 in HOO+RGB
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CTB1 in HOO+RGB

CTB1 in HOO+RGB, Erik Pirtala
CTB1 in HOO+RGB
Powered byPixInsight

CTB1 in HOO+RGB

Equipment

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Description

This extraordinary supernova remnant is located about 9700 light-years away. It is very uniquely formed, as an almost perfect sphere. What a dim target it is too! Very challenging to process. It took me a month to capture a total of 17,2 hours of exposure to it.

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Sky plot

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CTB1 in HOO+RGB, Erik Pirtala