In the 18th century, purely scientific interests as well as the
practical necessities of navigation motivated the development of new
theories and techniques to accurately describe celestial and lunar
motion.
"Between Theory and Observations" presents a detailed and accurate
account, not to be found elsewhere in the literature, of Tobias Mayer's
important contributions to the study of lunar motion--including the
creation of his famous set of lunar tables, which were the most accurate
of their time.