226 



DETERMINATION OF AN ORBIT FROM 



[BOOK II. 



log e = 0.8568244 



log x = 0.1611012 

 logx&quot;= 9.9770819 n 

 log \ = 9.9164090 n 

 log X&quot;= 9.7320127 n 



o = 8 52 4&quot;.05 



log a = 0.1840193 n, a = 1.5276340 

 log = 0.0040987 

 log c = 2.0066735 

 d= 117.50873 



The interval of time between the first and second observations is 133.91375 

 days, between the second and third, 125.97102 : hence 



log 4 = 0.3358520, log 6&quot;= 0.3624066, log - = 0.0265546, log fid&quot; = 0.6982586. 



We now exhibit in the following table the principal results of the first three 

 hypotheses : 



