The subject of this chapter is Theoria Lunae iuxta Systema Newtonianum, a booklet published in London in 1767 by order of the Commissioners of Longitude. Its author was Tobias Mayer, and the text had been prepared for the press by Nevil Maskelyne, the Astronomer Royal.1 We will undertake a study of this theory of Mayer’s (Theoria Lunae for short) as well as the circumstances under which it was conceived, in order to re-evaluate, in the final chapter, its place in Mayer’s work, particularly its relation to his lunar tables. As usual, our main focus will be directed towards the lunar longitude, taking latitude and parallax into account only where necessary.
KeywordsCoherence Sine Dinates Dispatch Lost
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