A 



U4i 



Prof, Fisher on the Orbit of the Comet of 1819. 



V 



ately from the elements, presents an agreement as close, perhaps. 



could be expected; 



even supposing the elements e 





Time. 



d 



LaX La-ic. 



Lat. Obs. 



Error. 

 ' II 





t n 



1 It 





5.622C 



1 23 58 15.7 



^3 55 24 



-f 2 5U7 





9.397S 



\ n 7 3"-2.4 



27 7 37 



— 05.6 





13.386E 



! 28 53 



i8 53 24.6 



— 24.6 





I6.388C 



) 29 S7 13 



29 38 24. f 



1 11.3 





18.3861 



29 56 31.7 



-29 58 18.? 



1 46.2 





19.3924 



I 30 4 3.6 



30 4 5 



— 01.4 





25.392^ 



\ 30 29 31.e 



30 29 31. S 



— .0 00.3 



4 



30.623f 



) 50 37 7 



30 37 7 



00.0 







'*. 



L 



Time. | Lonp. Calc. Long-. Obs. 



j Error. 



r 



d \ o f f, 



1 II 



/ // 





5.6229 101 26 55. b'lOl 25 41 



+ 1 14.6 





9.3'^r2 J 



LOS 39 38 



103 39 41.5 



03.5 





13.3868 1 



05 42 12.2 



105 45 1.5 



2 49.3 





16.3889 1 



or 4 58 



107 5 57.3 



59.3 





18.3861 ] 



107 56 15.5 107 56 17.8 



— 02.3 





19.3924 1 



108 21 5 108 23 5 



2 00 



1 

 1 



25.3924 



110 56 56.6 110 36 56.6 



+ 04.1 



1 



30.6236 



112 20 58 112 20 58 00 | 



The distances of the comet from the earth were calcnlated for 

 each, of the ahove times, and were found to be. 



0.906831 



1.037576 

 1.149605 



1.235418 



1.289453 

 1.315768 

 1.460460 

 1.570855 



the mean radius of the earth's orbit being taken as unity. 



If the correctness of the foregoing elements be admitted, the 

 comet, when it crossed the ecliptic, must also have passed over the 

 sun's disc. The particulars of this transit as determined from 

 the elements, are given below : 



