This work was an outstanding contribution to mathematical astronomy coming quickly after the publication of the second volume of Delaunay 's work on lunar theory La Théorie du mouvement de la lune which had been published in 1867. Tisserand was then appointed as an assistant-astronomer at the Paris Observatory.
Ang trabaho ay isang natitirang kontribusyon sa matematika astronomy, darating na mabilis na matapos ang pagkakalathala ng pangalawang dami ng Delaunay 's trabaho sa buwan theory La Théorie du mouvement de la lune na kung saan ay nai-publish sa 1867. Tisserand ay pagkatapos ay hinirang bilang isang assistant-astronomer sa Paris obserbatoryo.