30 



PAKALLAXES OF STAKS— BOOTH AND SCHLESINGEK. [MBM0IR rvoYxix 



The mean is — 0".001±0".004. The total proper motion quoted in Table 1 was derived 

 from an examination of the star catalogues. No other determination of this parallax has been 

 published. 



It is probable that these two stars (29" apart) are physically related. 



(615) and (516) 



02 (App.) 226, 21 h 51 m , +67° 38'. 



Plate 7901 has four exposures. 



FAINTER COMPONENT. 



c= +0.0008 mm. 

 M =- .00017. 



+13.30 c+ 17.14 m-2.61 -w=+ 0.0085 mm. 

 + 163.55 +8.93 =- .0179 



+8.42 =- .0066 *-=- .00035. 



Probable error for unit weight, ± .0016 mm. = ±".023. 

 Annual proper motion in R. A., - ".009±".OOS. 

 Relative parallax, - ".005 ±".009. 



BRIGHTER COMPONENT. 



+13.30 c+ 17.14 /*-2.61ir=+ 



+163.55 +8.93 =- 



+8.42 =- 



Probable error for unit weight, ± 



Annual proper motion in R. A., — 



Relative x>arallax, — 



.01S1 mm. c= +0.0014 mm. 



.0250 il=- .00023. 



.0166 *■=- .00129. 



.0012 mm. = ±".017. 

 '.012±".000. 

 '.019 ±".007. 



The mean by weight is -0".014±0".005. 

 No other determination of this parallax has been published, 

 same proper motion. 



These two stars have the 



