The left and right panels display the phase-resolved emission spectrum and thermal profile, respectively, with 1σ uncertainty regions. There is a broad water absorption feature from 1.35 to 1.6 μm. The rotating spheres depict longitudinally-resolved brightness temperature maps in three spectrophotometric channels. These results are based on spectroscopic phase-curve measurements of the hot-Jupiter exoplanet WASP-43b over three complete planet rotations using the Hubble Space Telescope and WFC3 instrument (Stevenson et al., 2014).