SED of the central star of the PN of NGC 6537 from 0.55 μm to 4.05 μm, as extracted from (archival) HST/WFPC2 and (our new) JWST/NIRCam narrowband images (red and blue × symbols, respectively). Dark and light red × symbols indicate our photometry and photometry reported in M. Matsuura et al. (2005), respectively. The extinction-corrected photometry (assuming A_V = 3.7; M. Matsuura et al. 2005) is displayed as green symbols, with dark and light symbols for our results and those reported in M. Matsuura et al. (2005), respectively. The SED is overlaid with blackbodies representing the hot central star photosphere (orange curve) and hot dust (blue curve) that have been (arbitrarily) scaled to the extinction-corrected photometry, for reference.