64 



THE ORBIT OF NEPTUNE. 



Geocentkic Apparent Longitudes and Latitudes of Neptune derived 





FROM Observation (Cent.). 









Longitude. 





Latitude. 





Date. 





Error of 

 Theory. 







Error of 

 Theory. 













Observation. 



Theory. 





Observation. 



Theory. 





1856, Aug. 8, 



O t II 



349 54 4.2 



3.3 



— 0.9 



— 1 8 43.7 



44.8 



— 1.1 



Sept. 13, 



348 58 37.9 



37.4 



— 0.5 



1 9 26.5 



27.2 



— 0.7 



Oct. 26, 



347 56 49.5 



48.8 



— 0.7 



1 9 7.1 



8.2 



— 1.1 



Nov. 17, 



347 40 53.7 



53.1 



— 0.6 



1 8 84.0 



35.3 



— 1.3 



1857, Aug. 13, 



3.52 5 16.8 



16.5 



— 0.8 



1 12 5.6 



6.2 



— 0.6 



Sept. 21, 



351 4 3.1 



2.0 



— 1.1 



1 12 45.6 



46.1 



— 0.5 



Oct. 24, 



350 16 10.7 



9.6 



— 1.1 



1 12 28.3 



28.3 



0.0 



Doc. 8, 



349 54 2.4 



1.4 



— 1.0 



1 11 11.8 



11.8 



0.0 



1858, Aug. 18, 



854 16 21.7 



20.9 



— 0.8 



1 15 19.7 



21.0 



— 1.3 



Sept. 23, 



353 19 17.3 



17.2 



— 0.1 



1 15 56.1 



56.6 



— 0.5 



Oct. 28, 



352 28 49.3 



49.2 



— 0.1 



1 15 34.2 



84.8 



— 0.6 



Dec. 12, 



352 8 48.3 



46.7 



— 1.6 



1 14 11.6 



11.8 



— 0.2 



1859, Aug. 21, 



356 30 3.7 



2.9 



— 0.8 



1 18 25.2 



25.8 



— 0.6. 



Sept. 23, 



355 37 45.0 



44.6 



— 0.4 



1 18 59.5 



60.0 



— 0.5 



Nov. 8, 



354 34 30.3 



29.4 



— 0.9 



1 18 22.8 



23.0 



^0.2 



Dec. 14, 



354 22 53.5 



52.5 



— 1.0 



1 17 8.5 



9.8 



-0.8 



1860, Aug. 20, 



358 47 47.9 



48.1 



+ 0.2 



1 21 17.0 



17.7 



— 0.7 



Sept. 23, 



357 54 28.9 



28.1 



— 0.8 



1 21 55.4 



56.4 



— 1.0 



Oct. 31, 



356 58 23.5 



22.4 



— 1.1 



1 21 31.1 



32.2 



— 1.1 



Dec. 13, 



356 36 25.2 



24^7 



— 0.5 



1 20 4.5 



4.6 



— 0.1 



1861, Aug. 22, 



1 2 43.6 



42.4 



— 1.2 



1 24 4.8 



6.0 



— 1.2 



Sept. 18, 



21 9.6 



7.6 



— 2.0 



1 24 41.8 



42.2 



— 0.4 



Oct. 30, 



359 16 40.6 



38.4 



2 2 



1 24 24.0 



24'6 



— 0.6 



Dec. 7, 



358 50 4.3 



3.3 



— LO 



1 23 7.0 



7.9 



— 0.9 



1862, Aug. 24, 



8 17 37.0 



34.7 



— 2.3 



1 26 46.0 



46.7 



— 0.7 



Sep't. 23, 



2 31 9.8 



7.7 



— 2.1 



1 27 24.2 



25.7 



— 1.5 



Nov. 6, 



1 25 28.0 



26.1 



— 1.9 



1 26 56.1 



57.3 



— 1.2 



Dec. 15, 



1 4 11.5 



10.0 



— 1.5 



1 25 29.0 



30.0 



— 1.0 



1863, Aug. 28, 



5 29 46.2 



46.2 



0.0 



1 29 22.8 



23.7 



— 0.9 



Sept. 27, 



4 42 51.8 



49.6 



— 2.2 



1 29 59.4 



60.3 



— 0.9 



Nov. 17, 



8 30 59.6 



58.0 



— 1.6 



1 29 12.1 



12.5 



— 0.4 



Dec. 12, 



3 18 20.4 



18.2 



2.2 



1 28 12.1 



12.4 



— 0.8 



1864, Aug. 7, 



8 9 22.8 



20.6 



2.2 



1 80 52.9 



53.7 



— 0.8 



Oct. 1, 



6 52 59.8 



56.7 



— 31 



1 32 26.8 



27.0 



— 0.2 



Nov. 12, . 



5 51 40.4 



37.8 



— 2.6 



1 31 48.0 



49.1 



— 1.1 



Dec. 17, 



5 32 30.3 



27.7 



— 2.6 



— 1 30 22.6 



23.1 



— 0.5 



