books.google.com - A reconstruction of the Chinese sky of two thousand years ago, based on analysis of the first star catalogue in China and other sources. Presented in six well-sized star maps for 100 BC, it is especially important for the history of astronomy. The Han sky, with five times more constellations than Ptolemy...http://books.google.com/books/about/The_Chinese_sky_during_the_Han.html?id=87lvBoFi8A0C&utm_source=gb-gplus-shareThe Chinese sky during the Han
