Phase curves of the active, cloudy, hot HD 209458 b simulation for flux at 1 au received between 3.5 and 4.5 μm. Black dots correspond to six complete orbits after the simulation end at t_cloud = 100 days. The red line is the flux from the thermal emission of the atmosphere only and is to be compared with the first orbit (uppermost black dots), and does not included reflected stellar flux.