2017s3 20180709 jchambo

Object/Date: C/2017 S3 (PANSTARRS) @ July 9,2018 02:42 UT Description: Comet C/2017 S3 (PANSTARRS) photographed on July 9th 2018, a week after its first outburst of activity has dropped from magnitude 9 to 10.5 with a coma which has reduced again its size from 5 to 3 arcseconds in appearent diameter. In the upper part of the image highlights "Tombaugh 5", a little-known open cluster of faint 12 magnitude stars. Tech data: Telescope GSO 8" N f/3.8 & Camera Atik 383L+. 14.5 min. total exposure. Non-composite stacking. Locally from VallÚs, Valencia (Spain).

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