Cumulative distribution N(< H) of absolute magnitude H for known Adelaide family members. The diamond symbol denotes the largest fragment (525) Adelaide, filled circles are smaller fragments in the family. The grey line shows the power-law relation N(< H) ∝ 10^γH for γ = 1.8, which approximates the distribution of small members. The upper abscissa provides an estimate of size, assuming geometric albedo p_V = 0.22 (a possiblevalue for (525) Adelaide; Sect. 2.1). The sizes would be slightly smaller for larger p_V values.