Aesthetics is the study of beauty. Beauty is harmony. Like any part of reality beauty can be observed and known for a fact. Beauty is the pattern of reality, the true chaotic pattern and not the orderly pattern often imagined or seen by men. Ethics is the study of proper behavior, while morality prescribes that behavior.
Morality is relative.
Morality is the customs and habits of a given culture at a given time. Morals arise from the whims of the individuals making up a society. There is no universal pattern, no meaning behind morality. There is no absolute morality. Morality is what is observed just like all other reality, in this case human behavior.