28th August 2016
Paul Camileri observed and identified the first outburst of this comet since 2011.
174P/ Echeclus is a distant Centaur class asteroid that was found to have cometary nature. The considerable heliocentric distance beyond the orbit of Saturn make this very cold object strange to show any out gasing that is a common occurence among regular comets.
Regular comets as it approaches the sun, heats up and releases a tremendous amount of volatiles causing the typical appearance of comet tails.
The mechanism of 174P/ comet is different and it is called Cryo volcanism.
The picture below show before and after outbursting event.