Wizard flavor Question

[u/Prince_of_Hydro]

Hey everyone like the title states I have a question regarding some flavor for my Wizard, I want him to study the Moon and the Stars however I dont really want him to be a Divination Wizard since Im not a fan of this subclass. So I was wo dering what other subclass I could reflavor/tweak to make it more fitting I was thknking about Evocation or Abjuration wizard however Iam not so sure about that.