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109

July 23, 1896

Exam of photographic plates to determine variation, of any, in Birmingham 502 BD +76°734 R.A. 19 25  28 Dec +76 19 (1890), = Duner II, 40.

Plate I11710  Oct. 18, 1894.             
a&b marked   I11636  Oct. 14, 1994.      
[[strikethrough]] B 2808 Sp. [[\strikethrough]]   
I [[strikethrough]] B [[/strikethrough]] 11637 Oct. 14, '94                                                 
I11709   Oct. 18, '94                        
I11662   Oct. 15. '94       
I14737 March 27,'96      
I14408 Jan. 30,'96
I13581 Oct. 1,'95
(I13564) Sept. 30,'95,
I11694  Oct. 17,'94
I13565 Sept. 30,'95
I12774 a5,1b  May. 2,'95
I11876 a5,2b  Nov. 12,94.
I11663 a4,3b  Oct. 15,'94.
I6713 a5,1b
I6747 a5,1b
I6712 a5,1b
I9226 a6,0b
I1926 a6,0b   Oct.1,'90
I1929 a5,2b   Oct.1,'90
I9225 a5,2b
I9168 a5,2b   Aug,10,'93
I9169 a4,2b   Aug,10,'93
I6768 a4,2b
I6707 a4,3b.
I9065 a5,2b
I6245 a4,2b
I6244 a5,2b 

a= B.D. +76^[[°]] 733. 19[[h]] 24^[[m]] 14^[[s]] +76^[[°]] 10.8^[[']] 8.0 
b= B D. +76^[[°]] 726 19 22 16 +76 25.0 9.1

The above plates have been examined and on these dates slight, if any, evidence of variation is shown. It is always about 0.4 to 0.5 fainter then "a" and 0.1 to 0.2 br. than "b". with very slight changes which are probably due to the difference in favor  of the image of this star which is very red.

John G. Wolbach Library, Harvard-Smithsonian Center for Astrophysics • Provided by  he NASA Astrophysics Data System