Quasar Ton 599 = 4C +29.45 (4FGL J1159.5+2914; z=0.72449) optical Flare.

object         date (UTC)      mag      comment   -------------------------------------------------- 4C +29.45     20230116.290    13.53V    active  (OU COAST, Tenerife)

Optical activity is accompanied by enhanced gamma-ray and x-ray flux. See Atel #15859.

Stefan Karge (SKA) http://quasar.square7.ch/fqm/1156+295.html