On-sky distribution of 146 Hα-emitting galaxies at z = 5.1–5.5 selected with JADES photometry and confirmed with FRESCO. Galaxies at z = 5.17–5.30 are shown in filled circles color-coded by their redshifts, and the redshift distribution (bin size Δz = 0.005) is shown as the inset panel in the upper left corner. Galaxies at z = 5.10–5.17, and z = 5.30–5.50 are denoted by downward and upward black triangles, respectively. Spectroscopically confirmed galaxies in the z ∼ 5.2 overdensity before the JWST (Walter et al. 2012; Calvi et al. 2021) are shown in open squares, color-coded by their redshifts. HDF850.1 and another luminous SMG, GN10 at z = 5.30 (Wang et al. 2004; Pope et al. 2005; Riechers et al. 2020), are shown in blue and red plus signs, respectively. The footprint of JADES and FRESCO are shown in dashed gray and magenta polygons, respectively. A scale bar of 5 comoving Mpc at z = 5.2 is shown in the lower left corner for comparison.