Mid- to far-IR morphology and SED of NGC 1427A. Top left: IRS LL1 white-light map, tracing warm dust; optical isophotes at μ = μ₀, μ₀+1, and μ₀+2 mag arcsec⁻² are overlaid. The warm dust is extended and asymmetric, with emission in the main body, the northern clump, and the bridge region, and there is an enhancement toward the southwest. Top right: Herschel/SPIRE 250 μm image from HeFoCS (Fuller et al. 2014); the photometric aperture used in that work is shown and is comparable in scale to our μ₀+1 isophote. Bottom: Infrared SED combining IRS spectra extracted within the three optical isophotes (colors as in the top-left panel) and the integrated Herschel photometry (black circles). A two-component modified blackbody fit with β = 2 yields T_warm = 59 ± 3 K and T_cold = 15.9 ± 2.6 K (masses in Appendix C.3).