Comet C/2017 O1 ASASSN (Oct.21,2017)

José J. Chambó
Location of photo
Valencia, Spain
Date/Time of photo
Oct 21,2017 02:06 TU
GSO 8" f/3.8 & Atik 383L+
Comet C/2017 O1 (ASASSN) photographed on October 21th 2017, at time begun to go away from Sun as Earth. In spite of had a brightness drop of half magnitude until 8.5, still shown photographically a coma with 10' diameter, alhough with external layer very difuse, and also a faint tail of 20' long toward southwest.
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