2017o1 20171021 jchambo

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

Description:
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:3×180s Bin1 + RGB:1x60s Bin2) from Hoya Redonda, Valencia (Spain)