Surface brightness profiles of NGC 1052-DF2 in the g band (upper panel), r band (middle panel), and the combination of the two filters (lower panel). The different symbols correspond to data obtained with different telescopes. These profiles were obtained using a fixed ellipticity and PA representative of the outer parts of the galaxy (see the main text for details). The dashed line in the middle panel corresponds to the Sérsic fit to the F606W band of the HST ACS camera (n = 0.6 and R_e = 22.6″; van Dokkum et al. 2018a).