152 



DErERMINAriON of the LJT'IT'UDE 



s. 



Moon's true longitude, 2 13 30 8 



Eftimate par. in longitude, + 24 55 



s. 



Eftimated apparent long, 2 



13 



55 3 





Moon's h or. parallax, 





60 33.3 





Reduftion, 





— II. I 





Reduced parallax. 





60 22.2 





Sun's hor. par. 





~ 8.7 





Difference, 





60 13.5 



- 



Altitude nonag. 



41 



50 6 





Longitude nonag. 



35 



33 53 





Par. in longitude, 





24 55-4 





Par. in latitude, 





44 52'2 





Moon's true rel. mot. in long. 





43 46.1 



Moon's true mot. in lat, 



Diff. par, in longitude, 



- 



5 1-2 



Diff. par. in latitude, 



App. mot. in longitude, 





38 44.9 



App. mot, in latitude, 



App. inclination, 





15 58 



App. mot. in rel. orbit, 



Moon's feraidiameter, 





16 30.0 





Augmentation, 





+ 9.2 





Inflexion, 





— 3-5 





Correfted femidiameter. 

 Sun's femid, — Irrad. 



Sum, 



Central angle, 

 App. inclination, 



Arch firft, 



Arch third. 



Par. in longitude, 



Sum, 



16 35.7 



15 45-0 





32 20.7 

 53 16 36 

 15 58 





53 32 34 

 19 13.2 



24 554 



Arch fecond, 

 Arch fourth, 



2 14 



16 



57 



+ ■ 



»9 



54 



2 14 



36 



51 





60 



348 





— 



II. I 





60 



23-7 

 8.7 





60 



15.0 



47 



29 



3a 



47 



59 



26 





»9 



54-2 





40 



42.6 





4 



20.4 





4. 



9.6 







10.8 





38 



44.9 





16 



3C.0 





+ 



11.6 





— 



3-5 





16 



38.1 





15 



45'0 





32 



23.1 



53 



10 



55 





15 



58 



52 



54 



57 





19 



31-7 





19 



54-2 



44 8.6 Difference, 



22.5 



Hence 



