Emission spectra for varying compositions showing degeneracy between heat redistribution and atmospheric composition. Each panel showcases drastically different compositions for each of the heat redistribution f values. Grey curves represent expected blackbody emission for respective f values. The main absorbers contributing to the fit are denoted in the corresponding legends. The calculated χ² values are for the Eureka! reduction of the JWST data from Hu et al. (2024). The dark red points denote MIRI’s shadow region. Note that the absolute flux of NIRCam is allowed to vary. Also shown is the lower flux Spitzer measurement from Demory et al. (2016b).