Radially average surface brightness (SB) profile of the Lyα emission of A2744-45924. Shown are the SB profile measured in the MUSE image (teal solid line; the shaded area gives the 1σ dispersion), and the SB produced by a point source for reference (black dotted line), normalized to the peak Lyα emission of A2744-45924. We compare our measurements to the halos measured around star-forming galaxies (3 < z < 6; −22 < M_UV < −15; Leclercq et al. 2017, shaded orange region between 16th and 84th percentiles), and also to Lyα halos of quasars at z ∼ 3.2 (blue dot-dashed and orange dashed lines, Borisova et al. 2016; Mackenzie et al. 2021, respectively). The Lyα halo of A2744-45924 is comparable to that of SFGs both in terms of absolute SB and exponential scale length, despite having L_bol comparable to that of quasars from Mackenzie et al. (2021). For reference, we also plot the faintest quasar halo in Mackenzie et al. (2021) as a dotted orange line.