Derived blackbody temperatures and blackbody radii of several TDEs compared to those of J234402. TDE-H and THD-He refer to TDEs with only hydrogen or only helium lines in their spectrum, respectively (see Sect. 4.2 for further detail). The dashed grey lines show the expected log log R_BB behaviour for several example values of L_bol. J234402 lies at the relatively cool and large ends of the distribution. The TDE values were all derived for the period around t_peak, whereas the values for J234402 were derived from spectra taken over a period approximately 25 days after the peak. The TDE data were published in van Velzen et al. (2021).