#Comet C/2016 R2 (PanSTARRS) on Jan 7th https://t.co/GlrtPURXkL Not in colour due to technical problems. None the less its tail is now looking really impressive! 16" ASA astrograph. B filter. 36min total exposure. #Astrophotography pic.twitter.com/PHKEoT1Dyq
— Damian Peach (@peachastro) 2018年1月7日
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