  Did the papacy tacitly permit the circulation of an explicitly Copernican
book in 1660? One scholar has recently argued that it did. A close analysis of
a unique illustration from that book, Andreas Cellarius's atlas Harmonia
Macrocosmica, illuminates this argument. This is because the illustration, a
diagram showing the relative sizes of the sun, moon, planets, and stars, was
among the material reviewed (at the request of the book's publisher) by the
Holy Office prior to the book's publication and was pro-Copernican.
