LONGITUDE. 



217 



B — Contiaued 



}f prohaUe error of equatorial interval of each 

 isit, hy TrougJiton & Simms—iUuminadon east. 



Tim wire. 



Second wire. 



Each re- 

 eult. 



50.96 



Each re- 

 sult. 



A". 



51.07 0.06 

 50.99 0.14 

 50.92 0.21 



51.29 

 51.18 

 51.08 



51.23 

 51.20 



51.02 O.U 

 51.14 



0.010 33.90 0.13 



0.07 O.005 34,19 



0.012 

 0.000 



34.10 

 33.92 



0.07 

 0.11 



0.02 0.000 

 0.06 ! 0.004 



0.12 0.014 34.08 

 51.96 0.13 j 0.017 34.11 

 51.12 

 51.16 



33.90 

 33.93 

 33.96 

 34.16 



51.20 0.07 



51.15 

 51.21 



0.01 0.000 34.10 0.07 0.005 17.13 

 0.03 O.OOI 34.24 0.21 0,0i4 17.20 



0.02 

 0.08 

 0.02 



34.10 I 0.07 0.005 



33.98 

 34.11 

 34.08 



0.002 



0.05 

 0.04 O.OOI 33.87 t 0.16 



34.13 0.10 



En'I int. 



51.13i:0.005 ' Eq-Iint. 





5. 9, 



34.03 ±0.005 Eqlint. 



wire from the middle tvire of 4Q-inch 

 (O, N. Thorn ^ computer.) 



Third wire. 



Each re- 

 sult. 



17.00 

 17.05 



0.01 

 0.02 

 0.23 

 0.08 

 0.02 



0.18 0.032 

 16.82 0.27 0.073 



0.11 

 16.98 0.11 

 17.22 



0.002 17.05 

 0.006 16.90 



0.10 

 0.05 

 0.10 

 0.18 

 0.09 

 0.10 



Fifth wire. 



Eac L re 

 suit. 



Si.\tli wire. 



Each re- 

 sult. 



A*. 



Seventh wire. 



0.006 ; 17.22 



0.000 



0.008 



0.001 17.15 



17.38 

 17.05 

 17.30 



0.006 34.14 



0.000 34.20 



0.001 34.29 



0.005 ' 34.13 



0.012 , 

 0.006 



O.OL 



17.13 



0.001 17.24 

 0.036 17.23 



0.012 

 0.010 



17.19 

 17.34 



0.08 

 p. 05 

 0.04 

 0.29 

 0.13 



O.U 0.012 



34.15 

 34.02 



0.002 33 96 0.18 0.032 



0.06 

 0.05 

 0.04 



0.004 34.01 0.13 



0.002 



O.OOI 



0.001 17.13 0.06 0.004 



33.96 

 34.33 

 34.08 

 34.16 



0.18 

 0.19 



o.os 



0.02 



s. 



0.001 



0.000 



0.004 

 . 022 

 0,000 



o.ooo 



0.014 



I 



0.000 



0.022 34.25 



0.005 



0.002 



0.008 

 0.020 



0.032 



0.15 1 0.022 51.22 



0.08 

 0.03 



34.24 

 34.07 

 34.15 ' 



0.03 

 0.01 



0.006 



0.001 



0.019 



0.010 



0.005 



0.000 



0.022 I 



0.001 



0.000 



51.34 



0.94 001 51.30 0.02 



0.10 

 0.07 

 0.12 



51.45 

 51.36 

 51.27 

 51.49 

 51.42 



«. s. 



17.09 4:0.006 Eq-Iint. 



8, 9. 



17.19 ±0.005 'Eq'lint. 



0.005 Eq'Iini. 



0.001 



0.036 

 0.004 

 . 029 

 0.020 

 0.032 

 0.035 

 O.OOO 

 0.000 

 O.OIO 

 0.005 

 0.014 



0.12 0.014 



0.13 



0.06 



ollimation error of AQ-inch transit^ d 

 Grande, October 27, 28, awt/29, 1853 



TABLE C. 



ined fro\ 



/ 



\de at the mouth of the Rio 

 {C. N. Thorn, computer.) 



Date of ob- 

 servation. 



Star observed 



Collimation of Date of oh- 



middle wire, 1 servation. 

 in time. 





1853. 

 October 27 



27 



27 



27 



27 

 28 



28 

 98 



28 

 28 

 28 



28 



28 



\ 



Ccphoi 



y Cophei. 

 G. C. 177 



G.C. 310 



/? Ur. Min... 



/? Cephei 



G.C. 1957... 



y Cephei, 

 G. C. 997, 

 G. C. 59. 

 G. C. 107 

 G. C. 177 

 G. C. 210 



■ . • 



8, 



096 



0.273 



0.050 



0.158 



0.163 



0.079 



0.090 



0.153 



0.070 



0.134 



0.220 



0.079 



0.099 



1S53. 

 October 28 



29 



29 



39 



29 



29 



29 

 29 

 99 

 29 

 29 



Star observed. 



Collimation of 

 middle wire, 

 in time. 



fi Vt. Min.... 



Cephei 



G.C. 1967.... 



* » t 



\jt^ \J ^ tf V V* ■*•# AA** 



G. C. 958 



y Cephei. 

 G. C. 997 



G. C. 59 





U> (>> XUl ■ «••■ a»tB 



G. C. 177. 

 G. C.910. 

 /? Ur. Min 



Sum 



Vol. 1 



Mean collimation of middle wire (in time) 

 Do do (in arc) . 



Collimation of mean of wires {in lime)..,. 

 Do do fin arc) ,. 



— 28 



S. 



0.150 



0.165 



0.081 



0.086 

 0.357 



0.125 

 210 

 0,179 

 0.162 

 0.345 

 . 08.1 

 0.460 



25)4.076 

 + 0t.l63 

 -J- 2 .44 

 -f Off. 10 

 1".$0 



# 



