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Comet C/2017 T2 PANSTARRS approaches NGC 957


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About this observation
Peter Tickner
Time of observation
19/01/2020 - 23:18
Comet C/2017 T2 PANSTARRS
Observing location
Urban Berkshire
ZWO ASI071 MC Pro CMOS camera
Riccardi 0.75 reducer
TS 130mm triplet APO refractor
EQ6 Mount
Autoguided off-axis with ZWO ASI120MM
9x240seconds at unity gain

I've been experimenting with a colour CMOS camera instead of my usual mono CCDS.  The ZWO ASI071 uses a sensitive Sony chip and compared to colour cameras I have tried in the past has no obvious amp glow and low background noise.  Comet C/2017 T2 PANSTARRS is a slow moving comet an that enabled me to stack enough images to bring out both it and background stars sharply.

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