Board Thread:General Discussion/@comment-24942837-20140624135620/@comment-26501222-20150623195035

Considering that making the Black Star involves cutting all ties to Azura, the Black Star stops being a Daedric artifact.

Azura's Star would most likely be slowly remade in Oblivion and the Black Star simply becomes a normal (if extremely powerful) magical item that is subject to natural entropy and will eventually break.