290 



INFERIOR CONJUNCTION OF VENUS, 1852, 



JCl/V 18, 1858. 



Clouds prevented observations until Ilic Q6th of July, except when the planet was too near the sun. 



JULY 37, 1853. 



Th comparing star was not visible in the morning twilight. 



jri,Y 38 and 39, 1883. 



Cloudy. 



Remarks. 



A dripping morning; even the object-glass, although under cover, suffused with moisture before it had been exposed ten minutes. Thus the 

 nages were never sharp ; and, indeed, the star was at least 3" in diameter all the time, though the planet was tolerably favorable for measures. 



a This observation omitted in the results. 



Results. 



Mean S. F. 

 Mean N. F. 



Two transits 

 Three transits 



h. m. 



Correction for chronometer at 2 53 . 

 Correction for chronometer at 2 58 . 



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

 Variation of declination in 4m. 31s. . 

 Corr. for diam. of micr. wires . 

 Observed N. S. diameter . 



h. m. s. 

 2 53 35.48 

 2 58 6.31 



+ 23.41 

 + 23.42 



3.220 = 62.76 



0.25 



2.20 

 60.31 



+ 52.25 

 + 52.63 



Rev. 

 9.325 

 12.545 



= 3 1.74 

 = 4 4.50 



h. m. s. 

 Santiago sid. time S. F 2 53 58.90 



Santiago sid. time N. F 25829.73 



Interval 4 30.83 



h. m. ' 



A pat 2 53 , 0.88 



A f at 2 58 . 1 .03 



