The early spectra of the kilonova AT2017gfo have a remarkably smooth blackbody continuum. which reveals information on the thermal properties and radioactive heating within the ejecta. However. the widespread use of a single-temperature blackbody to fit kilonova data is theoretically invalid. https://www.alarecre.com/Virescent-Harmony-Galaxy-A14-5G-Clear-Case-p106336/