Optical variability of the BL Lacertae object GC 0109+224. Multiband behaviour and time scales from a 7-years monitoring campaign

S. Ciprini, G. Tosti, C. M. Raiteri +4

We present the most continuous data base of optical $BV{R}_c{I}_c$ observations ever published on the BL Lacertae object GC 0109+224, collected mainly by the robotic telescope of t…