Dee was also doing real science, for example taking measurements of the super nova of 1572 and the comet that appeared 5 years later, and corresponding with Tyc

Dee was also doing real science, for example taking measurements of the super nova of 1572 and the comet that appeared 5 years later, and corresponding with Tycho about the same. Along with Tycho, he helped establish that the comet was further away than the moon, which helped dissuade people of the belief that all changes in the heavens happened between the moon and the earth. If you are going to dismiss Dee on the basis of his irrational beliefs, than you must dismiss Newton, Tycho, Kepler and many others as well.