LONGITUDE FROM OCCULTATIONS. 



361 



Observer. 



3)1. 



Number of Days 

 of Observation. 



3> II. 



Number of Days 

 of Observation. 



Mean Longitude. 



(3.) Longitude of Point Venus from Occultations of Stars by the Moon. 



For the reduction of the occultations, the corrections to the Tabular 

 Geocentric place of the Moon's center have been taken as follows : 



Correction 

 to R.A. 



Coreection 

 to N.P.D. 



The calculations have been made as described on page 27, including the 

 constant reduction of 2"-00 of Tabular Semidiameter. 



COMPARISON of CLOCKS and CHRONOMETERS in connection with the 



OBSERVED OCCULTATIONS. 



