SED of FU Ori. The data in black represents the photometry points compiled in Apppendix B. The yellow dotted line indicates the stellar flux contribution, the red dashed line the outer (> 3 au disk as determined by Quanz et al. 2006). The green dashed-dotted line represents the contribution from the inner disk, described here as a temperature gradient model. The blue line is the total flux, a sum of all components.