Board Thread:Boruto Discussions/@comment-1452242-20170117195252/@comment-3965545-20170118000821

@Elveonora As shown in P1 and P2, the user can change the temperature of Amaterasu.. Itachi is so good with it he can make it burn instantly through a fire proof, fire breathing toads stomach.. although it seems using the full force version of Tsukuyomi and Amaterasu take way more chakra than the watered down versions he used on Sasuke in P2. So yes, Amaterasu can be made hotter than the Sun.