68 



OPPOSITION OF MARS, 1849-50, 



JANUARY 18, 1850 Continued. 



Correction for chronometer at 5 29 



1 3.32 



Results. 



in. s. 



+ 337.905 . 

 + 338.943 . 



Santiago sid. time N. P. 

 Santiago sid. time S. F. 

 Interval 



Rev. 



13.447 



14.449 



4 22.08 

 = 4 41.61 



h. in. s. 

 5 23 24.13 

 5 28 3.35 

 4 39.22 



A P. F. limbs in A. R. reduced to arc 

 Variation of A. R. in 4m. 39s. 

 Observed P. F. diameter .... 



h. m. 



A p at 5 22 



15.57 



+ 0.84 



16.41 



0.28 



A N. S. limbs micr. in rev. 

 Variation of declination in 4m. 39s. 

 Corr. for diam. of micr. wires 

 Observed N. S. diameter . 



h. m. 



A p at 5 26 



1.002=19.53 



0.19 



2.20 

 17.14 



ii 

 . 0.30 



Remarks. 



Much dry haze, with light cirri, and an extremely minute star, combined to frustrate efforts to observe. There is also a difference in the observed 

 and computed R. A. of the star, amounting to more than fifteen, seconds ; and we cannot examine it for want of a copy of Bessel s Zones. 



Mean N.P. 

 Mean S.F. 



One transit 

 One transit 



h. m. 



Correction for chronometer at 4 49 

 Correction for chronometer at 5 12 , 



Results. 



h. m. s. 



4 48 38.92 



5 12 7.60 



m. s. 



1 6.52 



1 6.57 



A P. F. limbs in A. R. reduced to arc 

 Variation of A. R. in 23m. 29s. . . 

 Observed P. F. diameter . . . 



h. m. 



A p at 4 50 . 



12.45 



+ 3.29 



15.74 



0.34 



A N. S. limbs micr. in rev 0.960 18.71 



Variation of declination in 23m. 29s. . . 0.86 



Corr. for diam. of micr. wires ... 2.20 



Observed N. S. diameter . 15.65 



h. m. 

 A p at 5 13 . 



0.32 



