LONGITUDE* 



SI 



Computation of Transits observed at Cambr Ige on i inuary 3, 1870. 



Star 



Lamp 



Threads 



/? Orionis. 



W. 



E* F 



a 



h Qm 



5*8 



/? Tauri 



W. 

 CDE 



Groomb.966 

 CDE 



17".87 5 h 18 ra 4'.90 



S 



S 8° 21' 23 



// 



M 



f 

 log-/ 



secant 8 



loff. 



£•? 



log. a 



\og.R 



R 



b or b x 



A 



B 



C 



k 



Bb or Bb y 



T 



t 



co 



Cc 



w 



( ft, o) 



28° 29' 38" 



10 ra 40-.516 



24.953 



1.39712n 



.00464 



1.40176n 



20 



m 



2«.735 



+ 



.024 



5 h 22 m 24'.48 



<J Orionis. 

 W. 



CDE 



74° 57' 6 



// 



5 h 25 m 22'.38 



a Lk PO M 8. 

 W. 



c i > i : 



OKI- >M8. * I 'liAOOKIg. 



W. 



(' I)] 



W. <}. C.) 



I' I I 



S 0°23'59 



It 



24 m 23'.559 



8.38021 



.05607 



8.43628 



25.220 



.139 



.783 



+ 



027 



128 



.640 



1.011 



.273 



1.105 



.016 



.089 



1.138 



.018 



10 m 15 8 .296 



10 15.191 



1 57.321 



.141 



20 m 2 8 .762 



24 



2.603 



1 57.703 



+ 



.237 



1 57.558 



+ 



.266 



1 57.969 



1 57.570 



1 57.982 



+ 



.024 



8.38021 



.58565 



27 m 19 , .8' 



•"- h 27" 0\45 5 h 9" 87M7 5 h 37- 39*Ji 



S 17 c 55' 11 S 1 17' 21 1 1 



+ 



.021 



m rTi 



28^ o< 



3 31" 3 r . 88" .:' 





8.38021 



.00001 



+ 



.024 + 



.024 



16 



8.38021 



8.3 >21 



.021' 



.«'<K>11 



119M&I 



11 



8.96586 



+ 



.092 



.124 



8.38022 



+ 



024 



2.074 



3.246 



121 



.679 



.734 



8.40181 



+ 



02 



120 



8.38031 



+ 



.< 4 



117 



1.03743 



913 



521 



3.852 



1.000 



.060 



.403 



.016 



1.051 



.691 



.724 



+ 41394 



.110 



2 



1 .01 »0 





.016 



.016 



1.001 



1767 



24 m 23\ 651 



24 23.188 



.089 



27 m 19*.«27 



1 58.708 



+ 



.901 



1 59.609 



1 59.722 



28 19.722 



1 57.342 



.063 



•JS m 5 7'. » 



• t;as 



ftlft 



28 57.5< 





81" 34* ;• 



+ 

 + 



14.". 



.110 



89" 3 19 



81 3 





89 35.602 



1 57 



+ 



.234 



1 57.576 



1 57.590 



+ 



246 



1 57.3' 



1 .',7.338 



+ 



.234 



1 57.31 



1 57.5 





1 57.586 



1 5 6.'. 



.647 



1 65.101 



1 55.620 



* The observation on E, was lost. 





