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C/2012 S1 (ISON) Update: we confirm the presence of a Jet feature like in the coma of the comet observed on image taken on 2013 September 15; the jet appear steady toward the Sun and in PA about 110 deg. Also we observe the intense emission in the inner tail. Work in progress.
Comet C/2012 S1 (ISON) observed by A. Brosio on 2013 Sep 25 show again peculiar strucutures in the tail and the probable evolution of the like Jet feature.