Academy of Sciences.] 

 No. 2.] 



(496) 



INDIVIDUAL DETERMINATIONS. 

 11 Aquilae, 18 h 54 m , +13° 29'. 



21 



+ 11.10 c- 6.14 ^-2.05 tt= - 0.0099 mm. c= -0.0004 mm. 

 +140.76 +6.84 =+ .0419 ><=+ .00018. 



+6.34 =+ .0155 *■=+ .00213. 



Probable error for unit weight, ± .0015 mm. = ±".022. 

 Annual proper motion in R. A., + ".009 ±".007. 

 Relative parallax, + ".031 ±".009. 



No other determination of this parallax has been published. Boss gives +0".005 for the 

 proper motion. 



There is a ninth magnitude companion, distant 16", with which this star forms 2 2424. 

 The proper motions show that there is no physical connection between the two. 



(497) and (498) 



S 2481, 19 h 8 m , +38° 37'. 



