OF ARTS AND SCIENCES. 



329 



MEAN RIGHT ASCENSIONS FOR 1883.0. 

 Results of Separate Observations. 



Bradley 48. 



1883, Nov. 7 



16 



27 



Dec. 6 



Mean A. R. 1883.0 



h. m. 8. 



30 59.-3.3 

 58.90 

 59.14 

 59.12 



30 59.122 



Bradley 74. 



1883, May 17 

 June 1 

 Nov. 16 



27 

 Dec. 6 



15 



h. m. 

 44 



0.46 

 0.21 

 0.54 

 0.63 

 0.49 

 0.64 



Mean A. R. 1883.0 44 0.495 



Bradley 65. 



1883, 



May 29 

 June 1 

 Nov. 7 



27 

 Dec. 6 



15 



m. 

 51 



s. 

 29.87 

 29.42 

 28.08 

 27.34 

 27.74 

 27.49 



Mean A. R. 1883.0 51 28.323 



Bradley 95. 



1883, May 25 s. p. 



29 s. p. 



June 1 s. p. 



8 s. p. 



Mean A. R. 1883.0 



h. m. s. 



56 37.95 

 39.00 

 38.49 

 38.12 



56 38 390 



38 Cassiopeia A. E. 



1882, Dec. 8 



12 [wt. = i] 

 15 



1883, Jan. 15 



A. E. 

 Mean A. R. 1883.0 



+0.33 

 -t-0.69 

 +0.14 

 0.00 

 +0.233 

 32.314 



h. m. 



1 22 32.547 



Groombridge 339. 



s. p. 



s. p. 

 s. p. 

 s. p. 



m. 



36 



1883, June 5 

 8 



12 



14 

 Mean A. R. 1883.0 1 36 



55.32 

 54.63 

 55.57 

 54.19 

 54.928 



Schwerd 75. 



1882 



Groombridge 424. 



Bradley 344. 



1882, Dec. 12 [wt.= i] 



15 



1883, Feb. 7 



8 

 June 14 s. 



22 s. 



23 s. 

 25 s. 



m. 

 31 

 30 

 31 



Mean A. R. 1883.0 



2 31 



59.98 

 0.75 

 0.64 

 0.44. 

 0.04 

 0.20 

 0.07 

 0.366 



Groombridge 642.* 



1882, July 20 s. p 



1883, Jan. 18 

 Feb. 5 



7 



8 

 June 22 s. p 

 25 s. p. 

 July 10 s. p 



m. 



28 



Mean A. R. 1883.0 3 28 



20.25 

 20.45 

 19.57 

 20.2G 

 19.86 

 20.18 

 19.69 

 19.37 

 19.954 



* In reducing these observations to 1883.0, a yearly proper motion of +0».164 was employed. 



