THE ORBIT OF NEPTUNE. 



43 



From these heliocentric positions are concluded the following apparent geocentric 

 positions, corrected for aberration, for the dates of the normal places to be given 

 in the next chapter. 



,__ 



Date. 



Geocenlric 



Geocentric 



Date. 



Geocentric 



Geocentric 





Longitude. 



Latitude. 



Longitude. 



Latitude. 



1795, 



May 9, 



214 37 19.1 



+ 1 50 34.4 



1856, 



Aug. 8, 



849 54 8.3 



— 1 8 44.8 



1846, 



Dot. 14, 



325 31 84.9 



— 31 56.0 





Sept. 13, 



348 58 37.4 



1 9 27.2 





Nov. 14, 



325 23 28.2 



31 44.0 





Oct. 26, 



347 56 48.8 



1 9 8.2 



1847, 



July 26, 



829 41 22.0 



— 35 25.9 





Nov. 17, 



347 40 53.1 



1 8 35.3 





Aug. 17, 



329 7 18.8 



35 47.7 



1857, 



Aug. 18, 



352 5 16.5 



— 1 12 6.2 





Oct. 8, 



327 52 10.4 



35 58.8 





Sept. 21, 



351 4 2.0 



1 12 46.1 





Nov. 18, 



327 36 50.3 



35 38.6 





Oct. 24, 



350 16 9.6 



1 12 28.3 



1848, 



July 25, 



331 58 5.0 



— 89 22.8 





Dec. 8, 



349 54 1.4 



1 11 11.8 





Aug. 29, 



331 3 15.8 



39 55.2 



1858, 



Aug. 18, 



854 28 52.6 



— 1 15 21.0 





Oct. 6, 



330 8 55.3 



39 57.8 





Sept. 23, 



353 19 17.2 



1 15 56.6 





Nov. 17, 



329 49 22.4 



39 32.8 





Oct. 28, 



352 28 49.2 



1 15 84.8 



1849, 



Sept. 1, 



333 15 38.6 



— 43 .52.7 





Dec. 12, 



352 8 46.7 



1 14 11.8 





Oct. 15, 



832 15 32.4 



48 49.2 



1859, 



Aug. 21, 



856 30 2.9 



— 1 18 25.8 





Nov. 25, 



332 4 16.7 



48 17.1 





Sept. 23, 



355 37 44.6 



1 19 0.0 



1850, 



Aug. 28, 



335 39 38.5 



— 47 42.7 





Nov. 8, 



354 34 29.4 



1 18 28.0 





Oct. 15, 



834 31 9.5 



47 41.1 





Deo. 14, 



354 22 52.5 



1 17 9.3 





Nov. 20, 



334 15 23.8 



47 9.5 



1860, 



Aug. 20, 



358 47 48.1 



— 1 21 17.7 



1851, 



Sept. 2, 



337 48 58.1 



— 51 88.7 





Sept. 21, 



357 54 28.1 



1 21 56.4 





Oct. 14, 



336 48 10.9 



51 30.0 





Oct. 31, 



356 58 22.4 



1 21 82.2 





Nov. 20, 



336 28 31.0 



50 54.1 





Dec. 13, 



356 86 24.7 



1 20 4.6 



1852, 



Aug. 7, 



340 46 11.0 



— 54 51.6 



18G1, 



Aug. 22, 



1 2 42.4 



— 1 24 6.0 





Sept. 5, 



840 10.3 



55 19.5 





Sept. 18, 



21 7.6 



1 24 42.2 





Oct. 12, 



339 5 43.0 



55 14.8 





Oct. 30, 



359 16 88.4 



1 24 24.6 





Nov. 28, 



338 43 23.4 



54 23.3 





Dec. 7, 



358 50 3.3 



1 23 7.9 



1853, 



Sept. 1, 



842 24 47.7 



— 58 5-5.9 



18G2, 



Aug. 24, 



3 17 34.7 



— 1 26 40.7 





Oct. 15, 



841 19 0.2 



58 52.4 





Sept. 23, 



2 31 7.7 



1 27 25.7 





Nov. 24, 



340 56 3.0 



58 4.7 





Nov. 6, 



1 25 26.1 



1 26 57.3 



1854, 



Aug. 30, 



344 46 17.8 



— 1 2 27.5 





Dec. 1.5, 



1 4 10.0 



1 25 30.0 





Sept. 24, 



844 5 33.2 



1 2 37.0 



1863, 



Aug. 28, 



5 29 46.2 



— 1 29 28.7 





Oct. 27, 



348 23 17.3 



1 2 15.3 





Sept. 27, 



4 42 49.6 



1 30 0.8 





Dec. 5, 



343 12 2.8 



1 1 19.1 





Nov. 17, 



8 30 58.0 



1 29 12.5 



1855, 



Aug. 10, 



347 34 54.2 



— 1 5 28.0 





Dec. 12, 



3 18 18.2 



1 28 12.4 





Sept. 8, 



346 49 57.0 



1 6 1.8 



1864, 



Aug. 7, 



8 9 20.6 



— 1 30 53.7 





Oct. 22, 



345 45 6.2 



1 5 50.1 





Oct. 1, 



6 52 56.7 



1 32 27.0 





Nov. 29, 



345 24 25.3 



— 1 4 S4.8 





Nov. 12, 



5 51 37.8 



1 31 49.1 













Dec. 17, 



5 32 27.7 



— 1 80 23.1 



The next step is to deduce positions of Neptune from observations, in order to 

 compare them with the above theoretical positions. 



