[Astor]

Vrook fifty-four years old? That's ridiculous. He's got to be at least seventy (possibly even eighty) years old, because he was a Jedi Master at the time of the Great Hunt, which occured forty-two years before his death, and I don't think anyone has ever become a master at the age of twelve.

So, if we assume that he was in his late thirties or early forties when he achieved the rank of master, that would put his age at between seventy-eight and eighty-six.