21 



The first limit is ; « : 



The second limit is ; e <;^ 0.01 

 ; e < 0.02 

 ; e<0.03 

 ;e<0.04 

 ;e<0.05 

 ;e<0.06 



9^ for the true anomaly, January 1, 1847. 



50°. 1 

 with the a priori probability = „„„ &c. 



90° 

 72°.2 



90° 

 79°.2 



90° 

 83°.0 



90° 

 85°.4 



90° 

 87°. 2 



90° 



LOCI OF NEPTUNE, MAY 10, 1795, BY ELEMENTS 11. 



For + 



V, and e = 



= 0.06 



a 





0.05 , 



It 





0.04 



a 





0.03 



<< 





0.02 

 0.01 



v = 



= 



0.006474 



— 



V 



0.01 



<( 





0.02 



(C 





0.03 



li 





0.04 



cc 





0.05 



<c 





0.06 



R. A. y; 



Eqviinoxof 1800. 



13 45 50 

 13 49 48 

 13 53 51 



13 57 52 



14 1 56 

 14 6 21 

 14 9 18 

 14 12 9 

 14 16 36 

 14 20 35 

 14 24 29 

 14 28 19 

 14 32 8 



Dec. 



Equinox 



A 



Df 1800 



— 9 



3.1 



— 9 



24.9 



— 9 



47.0 



— 10 



8.6 



— 10 29.6 



— 10 53.4 



— 11 8.7 



— 11 



23.4 



— 11 



44.5 



— 12 6.1 



— 12 25.3 



— 12 44.2 



— 13 



2.6 



The list of stars within 15' of these loci in the Histoire Celeste, as found in 

 Hussey's XIV Hour, is as follows : 



Trial Catalog-ue. 



No. 



W 



Mag-. 



9.10 



7.8 



7.8 



8.9 



9 



8 



8 



7.8 



Authority. 



9 24.0 



L. 





9 58.8 



L. 





9 45.7 



L. 



B. 



10 11.7 



L. 



B. 



10 26.4 



L. 



B. 



10 26.4 



L. 



B. 



11 8.3 



L. 



B. 



11 20.96 



L. 





13 10.7 



L. 



B. 



The stars seen afterwards by Bessel, marked B, were at once excluded, leav- 

 ing Nos, I, % and 8, not in the Zones of Bessel. Of these No. I was €?coIiid#4 



