252 



Prsesepe Group ; Measures and Reduction 



Star 5. 





Right Ascension : 



Declination : 



Plate. 

















At Epor:h of 



P. M. 



At Epoch 



At Epoch of 



P. M. 



At Epoch 





Plate. 





1875.0. 



Plate. 





1875.0. 



I 



i27°47 / 38 // .48 



—O". 14 



8"-34 



20°3S'33 // -84 



+o".i7 



34".OI 



II 



.68 



— .14 



•54 



33 



7i 



+ -17 



33 -88 



III 



•57 



— -14 



•43 



33 



64 



+ .17 



33 -8i 



IV 



.48 



— .14 



•34 



33 



74 



+ -17 



33 -9i 



V 



•35 



+ .07 



.42 



33 



97 



— .08 



33 -89 



VII 



.41 



+ -07 



.48 



33 



99 



— .09 



33 -90 



VIII 



•38 



+ .07 



•45 



34 



01 



— .09 



33 -9 2 



IX 



.22 



+ -07 



•29 



34 .01 



— .09 



33 -9 2 



Mean, i27°47 / 



38".4i 



Mean, 20°38 / 33".gi 



Probable Error, 



±.022 



Probable Error, ±.015 



Proper Motion, — 0.030 



dr O.O06 



Proper Motion, +0.037 ±0.004 



Star 6. 





Right Ascension : 



Declination : 



Plate. 

















At Epoch of 



P. M. 



At Epoch 



At Epoch of 



P. M. 



At Epoch 





Plate. 





1875.0. 



Plate. 





1875.0. 



I 



I27° 5 i'33".8i 



— 0^.32 



33" 49 



20°25'33".46 



+o".2i 



33". 67 



II 



.66 



— .32 



•34 



.16 



+ .21 



•37 



III 



• 77 



— -32 



-45 



•30 



+ .21 



•5i 



IV 



•97 



— -32 



•65 



•52 



+ .21 



•73 



V 



•47 



+ .16 



■63 



.66 



— .10 



• 56 



VII 



•34 



+ .16 



•50 



.61 



— .10 



•5i 



VIII 



.26 



+ .16 



.42 



.64 



— .10 



•54 



IX 



.20 



+ .16 



.36 



.76 



— .10 



.66 



Mean, i27°5i / 33 // .4 8 



Mean, 2o°25'33".57 



Probable Error, ±.031 



Probable Error, ±.031 



Proper Motion, — 0.069 ±0.009 



Proper Motion, +0.044 ±0.009 



