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NGC 6643


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About this observation
David Swan
Time of observation
27/12/2017 - 21:35
NGC 6643
Observing location
Tynemouth, UK
Scope: 200mm SCT @ f/6.3
Camera: ASI178MM
Filter: Baader UV+IR cut
Software: FireCapture, DeepSkyStacker and FITS Liberator
180 x 5s

I managed - finally - to find the cause of the fixed pattern row noise that has been a problem recently. It was built-up charge in the camera! 10s on the radiator (good earth connection) completely eliminated the banding. 

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