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Fig. 2


Haumea’s thermal light curve at 100 μm (top) and 160 μm (bottom), combining data from the two visits (see text for details). The black dashed curve is the “scaled optical light curve” obtained by rescaling the optical brightness to match the mean of the thermal fluxes. The part of this curve that is affected by Haumea dark spot, according to the Lacerda et al. (2008) preferred model, is outlined in yellow. The grey solid curve is a Fourier fit to the thermal data. The reference for zero phase is at JD = 2 455 188.720000 days, uncorrected for light-time. Rotational phases have been computed using light-time corrected Julian dates and light-time corrected zero date (see caption of Table A.1 for further details). The uncertainty in the rotational phase is ±0.001.

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