Extended Data Fig. 7: Absolute thermal emission fluxes of Charon.
From: Evidence of haze control of Pluto’s atmospheric heat balance from JWST/MIRI thermal light curves

Observed (black points) and modeled (red curve) fluxes. The purple and blue curve show the contribution of the H2O ice and red pole units, respectively. In order to explain the observed emission peak of Charon’s lightcurves at ~220°E, we find that the H2O ice unit must dominate the thermal emission and be almost as warm as the red pole (despite its higher albedo).