1878.] 



Dr Pearson, On a series of lunar distances. 



169 



exception as to the inaccuracy of the Nautical Almanac might be 

 avoided ; it seems clear, however, that both volumes are imme- 

 diately based on the same Tables, and perhaps the idea of a dis- 

 crepancy will seem superfluous to any one acquainted with the 

 subject. 



July (13) 14, 1876. 



© and ([ (3 obss.) 93« 10' 13" 

 ■ " 20 



P.M.T 

 L.M.T 



Eqn. T, 

 Co.H.A 



© P.D. 



Co. lat. 



7 44 30 a.m. 

 7 35 38 ... 

 5 34 



s. sq. 

 sin 

 sin 



ind. error 

 © s.d. 



S.T. 

 L.M.T. 



7 30 3 

 19 35 38 



(( s.d. 



15 46 



15 48 



93 42 7 



© Z.D, 

 © True Alt 



© App. do. 



9-839777 

 9-968261 



9-787368 



s. sq. 9-595406 



i h.p. 57' 9" 



B. -30.5 



Th. 720 F. 



3(27) 5 41 



i E.A. 16 6 



((H.A. 1 59 35 



10 25 



i P.D. 80 26 16 



Co. lat. 37 47 50 



118 14 6 



97 22 14 



sm 



sin 



s. sq 



9-9997473 

 9-3898271 

 CF3895744 



215 36 20 

 20 51 52 



107 48 10 

 10 25 56 



9-970099 

 9-993923 

 9-787368 



9-751390 



9-9786892 

 9-2578519 



i Z. D. 490 3' 56" y-2365411 

 ([ True Alt. 400 56' 4" 



-(42' 4"+ 26"+ 3") 

 [ App. Alt. 400 13' 31" 



(To reduce or clear the observed distance.) 

 Dist. 93042' 7" 

 © a. 



30 39 28 

 40 13 31 



sec. 

 sec. 



10-0653863 

 10-1171846 



© t. 

 i t. 



Dist. at 9 a.m. 



P. M. T. 



cos 9-1274803 



cos 9-9913318 



cos 9-9347235 



cos 9-8782113 



2)9-1143178 



9-5571589 

 sin 9-9856658 

 sin 9-7369506 



cos 



2)9-7226164 

 sin 9-8613082 



Diff. for p. 1. (+)5". 

 p. 1. 6914 

 2937 

 p. 1. 3977 



a. m. by Obs. 

 by Chrou. 

 error 3 33" (:=1' 48" arc). 



Observed distance too small, because the Moon is approaching the Sun. 



13—2 



