Address ... on the Presentation of the Gold Medal to Professor Hansen, for His Lunar Tables

Academy accuracy admiration advancement advantage amount analytical anomaly appeared applied approximations arguments Astronomer Royal astronomers award become brought Burckhardt Burg calculations called carrying century Clairaut coefficients comparatively comparison complete computation considerable considered construction continued correcting Council deducing determination difficulties discoveries disturbed duty elements elliptic employed enable epoch equally equation error estimation expanded expressing fact French function funds gave Gentlemen given giving Government Greenwich observations Hansen important inequalities known labour look Lunar Tables lunar theory mean longitude mean motion Medal ment mention method moon motion namely Nautical navigation necessary obtains orbit perfect period physical possible practical present prize problem produced Professor proposed published quantities reduced reference remaining remarkable researches scientific sent Society solar stars step successive sufficient task tion true longitude unit values whole