3 2 4 



A METHOD OF CALCULATING 



Not having the Almanack for 1778, I mail affume 

 the Moon's Latitude to be o° 51' S. and her Longitude 



9*° 57'. 



h / // . n * *. 



10 56 11 ap. time 



o 11 



o din 7 , long. 



21 27 14 AR 

 10 56 n 



11 7 11 ap. t. Greenw* 8 23 25ARofMerid. 



52 23 latitude 

 o 14 correction 



125 51 15=AR 

 270 



52 9 reduced lat. 144 8 45=A 

 37 51 colat. 



tang, of latitude 10.11319 



C=3° 39 

 D= 7 11 



iA=7 2 4 



18 55 half colat. tang, of obliq. 9.63761 



11 44 half obliq. 



Sine of 34°.i8 / =X 9.75080 



fecant 

 cofine 

 cotan. 



M=20 28 

 N= 4 3 2 



25 o 

 B = 65 o 



180 o 



tan.M 



10.06535 



9-99 6 58 

 9.51005 



9-57 1 9 8 



cofecant 



line 

 cotang 



tang. N. 



10.29261 

 9.09706 

 9.51005 



A=i44. 9 fin. 

 Lat. 52. 9 cos. 

 B 65 o fee. 



115 o long, nonag. deg. 



altitude of ditto 58 15 S 

 45 26=half )'s polar diftance 

 29 8=half alt. non. degree 



Q=74 34 fecant 

 R=i6 18 cofine 



T n 



^P = n 32 cotan. 



«z=86 46 tan. m 

 «=54 5 s 



10.57493 

 9.98218 



10.69025 

 11.24736 



co fee. 



fine 



cotan. 



tan. n 



8.89972 



9-7^765 

 9.78788 



10.37405 



9-9 2 958 



10.01595 



9.44819 



10.69025 



10.15439 



