2017s3 20180705 jchambo

Image of comet c / 2017 S3 (Panstarrs) obtained during the outbreak of activity it has had in early July 2018, in which its brightness increased from magnitude 12 to 9 while its coma It expanded from about 2,5 'to 5' of apparent size (approximately 150.000 to 300.000 km. In Real Diameter). The intense greenish key of coma suggests that most of the material emitted is gas c2 (Diatomic Carbon).

Telescope Telescope 8 " n f / 3.8 + Camera Atik 383 L+. 14,5 min. Of total exposure. Non-compound stacking. Locally from vallés, Valencia (Spain).