Tycho's Star and the supernov ae of Uranographia Britannica

Kevin J Kilburn describes how a recently discovered 18th century star atlas can shed new light on old supernovae.
The discovery in the library of Manchester Astronomical Society of a first impression of John Bevis's Uranographia Britannica has led to a reappraisal of these early observations. In particular, his observations of Tycho's Star suggest a new interpretation of the supernovae responsible.