The V-band absolute magnitude and size of Hedgehog, together with other isolated quiescent dwarf galaxies (KKR 25, Makarov et al. 2012; KKs 3, Karachentsev et al. 2015; COSMOS-dw1, Xi et al. 2018; Polzin et al. 2021; Tucana B, Sand et al. 2022) and potential backsplash galaxies in the Local Group and M81 (Cetus, Tucana, And XVIII, Eri II, and Blobby; shown in yellow triangles). The quiescent dwarfs at D < 2 Mpc (McConnachie 2012) and early-type satellites of MW analogs (Carlsten et al. 2022) are shown in gray for reference. Hedgehog agrees with the size–luminosity relation but is on the smaller side.