Potential internal structure solutions for (283) Emma, assuming a spherical core. A range of potential core densities 0.5-4 g cm^–3 has been proposed, in line with the range of densities of observed rocky bodies in the Solar System. Upper panel: Residuals between the observed and modeled J₂ values (see color bar at right). Darker colors correspond to a better fit. Lower panel: Corresponding crust densities for different cores. Not all solutions are physical. Scenarios with no core and smaller cores than pictured were also considered, but the residuals were unreal-istically high. A proposed reasonable solution corresponding to a core of similar density to known C- and P-type asteroids (1.5 g cm^–3) is marked with a heart.