However , due to the publishing requirements of the emperor and negotiations with Tycho Brahe 's heir , it would not be printed until 1627 .
In 1623 , Kepler at last completed the Rudolphine Tables , which at the time was considered his major work .
Due to the publishing requirements of the emperor and negotiations with Tycho Brahe 's heir , it would not be printed until 1627 .
In 1623 , Kepler at last completed the Rudolphine Tables , which at the time was considered his major work .