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C/2017 O1 (ASASSN) @ Oct.21,2017 02:06 UT

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.

Tech data:
GSO 8" 760mm. f/3.8 & Atik 383L+ (L:3180s Bin1 + RGB:1x60s Bin2) from Hoya Redonda, Valencia (Spain)

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