Composite picture of the influence of cometary and stellar uncertainties on the BB orbit recorded at the next perihelion passage. Blue dots mark 5001 clones of BB, each perturbed by all stars on their nominal tracks. Orange dots represent the nominal BB orbit perturbed by 10 000 clones of P0107. Black dots present 10 000 pairs of the interacting BB and P0107 clones. The red marginal distribution histogram of q_next corresponds to the black cloud of points. The result for nominal stellar and cometary data is in the center of the green circle.