92 



OPPOSITION OF MARS, 1851-52, 



Remarks. 



Good images and tolerably steady all nisht- The dark line bounding the north polar zone is not as distinct as on the night before last, nor do I 

 perceive the brownish-red portion on the southeast quarter of the planet. 



a Measures close. b Measures open. 



Results. 



1 . m. s. 

 Mean S. F. . . 7 44 20.61 



in. s. Rev. 



1 42.144 . . . 1.945 . 



. 37.91 



h m. m. s. 



Correction for chronometer at 7 44 . . . 1 27.68 



h. m. 



A p at 7 45 . . . 



Santiago sid. time S. F. 



h. m. s. 

 7 42 52.93 



0.04 



