Congratulation to Jun Lao for discovering fragmentation of the comet. Now that new super-cold surfaces are exposed to the sun, it will be interesting to see what will happen. It look similar to comet 73P/Schwassmann-Wachmann B, 2006 Apr 22 at 21:04UT.

Tel: C14 @ f/11.4 AP7 CCD -40°C 1.1"/pix Paramount GT-1100S
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.

Atom weight Neptunium Isotope 238.Half-life 2 days
Plutonium Isotope.Atom-weight 238.Half-life 87.7 years gives power to the Voyagers, New Horizon and other distant spacecrafts.