While browsing through this months Astronomy Now I came across an ad for a Moon disc atlas on page 92. From what I could see it looks a fine map, but as I looked closer I could see that adjacent to the Mare Serenitatis is Larcus Somniorum, this should read Lacus Somniorum.
It appears to be an oversight that has gone unnoticed, even by the staff of Astronomy Now.
Paul
Programming today is a race between software engineers striving to build bigger and better programs, and the universe trying to produce bigger and better idiots. So far, the universe is winning.
Rich Cook