





Heliocentric co-ordinates of Neptune for mean noon, Washington, referred 



Logarithm of 

 Neptune's distance 



Date 1851. 



to the apparent equinox and equator. 



from the Earth. 



X 



y 



z 



Log. A 



January 4 



27.45465 



— 10.83466 



— 5.151569 



1.4852453 



12 



27.46460 



— 10.81299 



— 5.142940 



1.4866945 



20 



27.47452 



— 10.79133 



— 5.134314 



1.4879450 



28 



27.48442 



— 10.76967 1 



— 5.125690 



1.4889786 



February 5 



27.49430 



— 10.74801 i 



— 5.117067 



1.4897749 



13 



27.50416 



— 10.72636 { 



— 5.108444 



1.4903235 



21 



27.61399 



— 10.70471 



— 5.099822 



1.4906177 



1 



27.52380 



— 10.68307 



— 5.091199 



1.4906541 



March 9 



27.53358 



— 10.66143 



— 5.082576 



1.4904323 



17 



27.54334 



— 10.63979 



— 5.073943 



1.4899564 



25 



27.55309 



— 10.61815 



— 5.065308 



1.4892389 



April 2 



27.56282 



— 10.59651 



— 5.056669 



1.4882904 



10 



27.57252 



— 10.57487 



— 5.048023 



1.4871255 



18 



27.58221 



— 10.55322 



— 5.039369 



1.4857679 



26 



27.59189 



— 10.53154 



— 5.030703 



1.4842382 



May 4 



27.60156 



— 10.50983 



— 5.022029 



1.4825614 



12 



27.61122 



— 10.48808 



— 5.013347 



1.4807661 



20 



27.62086 



— 10.46631 



— 5.004654 



1.4788849 



28 



27.63049 



— 10.44453 



— 4.995952 



1.4769480 



June 5 



27.64010 



— 10.42274 



— 4.987245 



1.4749899 



13 



27.64969 



— 10.40093 



— 4.978538 



1.4730477 



21 



27.65926 



— 10.37910 



— 4.969832 



1.4711539 



29 



27.66881 



— 10.35727 



— 4.961124 



1.4693444 



July 7 



27.67833 



— 10.33544 



— 4.952414 



1.4676567 



15 



27.68784 



— 10.31360 



— 4.943702 



1.4661207 



23 



27.69733 



— 10.29172 



— 4.934989 



1.4647687 



31 



27.70680 



— 10.26982 



— 4.926278 



1.4636278 



Auarust 8 



27.71625 



— 10.24790 



— 4.917568 



1.4627247 



16 



27.72567 



— 10.22603 



— 4.908861 



1.4620792 



24 



27.73507 



— 10.20419 



— 4.900155 



1.4617038 



September 1 



27.74443 



— 10.18239 



— 4.891441 



1.4616118 



9 



27.75377 



— 10.16059 



— 4.882726 



1.4618024 



17 



27.76310 



— 10.13879 



— 4.874010 



1.4622758 



25 



27.77241 



— 10.11696 



— 4.865293 



1.4630228 



October 3 



27.78169 



— 10.09512 



— 4.856576 



1.4640292 



11 



27.79096 



— 10.07327 



— 4.847850 



1.4652729 



19 



27.80021 



— 10.05141 



— 4.839111 



1.4667290 



27 



27.80945 



— 10.02954 



— 4.830364 



1.4683682 



November 4 



27.81868 



— 10.00764 



— 4.821606 



1.4701559 



12 



27.82789 



— 9.98571 



— 4.812841 



1.4720542 



20 



27.83708 



— 9.96377 



— 4.804067 



1.4740269 



28 



27.84626 



— 9.94182 



— 4.795283 



1.4760340 



December 6 



27.85542 



— 9.91985 



— 4.786500 



1.4780348 



14 



27.86456 



— 9.89784 



— 4.777716 



1.4799910 



22 



27.87369 



— 9.87584 



— 4.768927 



1.4718672 



30 



27.88280 



— 9.85385 



— 4.760134 



1.4736268 



38 



27.89188 



— 9.83185 



— 4.751336 



1.4752396 



Ap.— V 



3—2. 









