Ukrainian amateur astronomer Gennady Borisov discovered a comet while participating in a star party: Amateur Astronomer Discovers Comet C/2013 N4 (Borisov) During a Star Party – universetoday.com.
Animation of Comet Borisov compiled from multiple images.
Credit: astronomamator.narod.ru/cometes/comet_anim.gif
It is officially titled MPEC 2013-N51 : COMET C/2013 N4 (BORISOV).
More info and images at Leonid Elenin’s Photos | Facebook.