120 Butherfurd Photographic Measures of 



Table XII. — Proper Motion of 6i 2 Cygni. 



Authority. 



Date of 

 Observa- 

 tion. 



Epoch 



of 

 Cata- 

 logue, 



T 



No. of 

 Obs. 



Position at 



Epoch of 



Catalogue. 



Reduction 



to 1875+Syst. 

 Correction. 



Reduced 

 Position. 



Wgt. 



Right Ascension. 



Br. 2745 



Pi. xx =476 

 Abo 482 



Pond 

 Tay. 



946 

 9785 



12 Yr x 1887 



12 Yr ? 



6 Yr. 

 Eadj 

 Yarn. 

 Ead 2 



7 Yr. 

 Quet. 



1887 

 1353 

 5107 

 9477 

 2059 



1743 

 9276 



N. 7 Yr. 2394 

 Poulk. 



9 Yr. 1976 

 Bomb. 4784 



10 Yr. 3532 

 Green. Yearly 



Eesults. 



1753-8 



1755 



2 



1806.2 



1800 



17 



1828. 



1830 



62 



183c. 



1830 



16 



1835. 



1835 



5 



1839. 



1840 



30 



1845. 



1845 



40 



1850.8 



1850 



45 



1853-0 



1845 



19 



1854.8 



i860 



23 



1856.4 



i860 



11 



1856.9 



i860 



48 



1861.6 



1865 



18 



1864.0 



1864 



17 



1866.2 



1865 



27 



1872.3 



1872 



13 



1877.9 



1375 



7 



1883.6 



1880 



14 



1893-7 



1893 



10 



1858.58 



1875 



424 



55 

 57 

 59 

 59 

 59 

 59 

 59 

 60 



59 

 60 

 60 

 60 

 60 

 60 

 60 

 61 

 61 

 61 

 62 



20 h + 



m s 

 57-41 

 57.8o 

 18.34 



18.73 

 32.24 



45.14 



58.61 



12. 11 



58.76 



37.08 



38.93 



38.95 



5i.li 



49.70 



52.448 



n.185 



19-37 

 32.656 



7-565 



>i 19.291 



+5 

 +3 

 +2 

 +2 

 +1 

 +1 

 +1 

 +1 

 +1 

 +0 

 +0 

 +0 

 +0 

 +0 

 +0 

 +0 

 +0 



21.767 



21.497 



0.805 



o.737 

 47.368 

 34.086 

 20.598 



7.153 

 20.550 

 42.174 



40.377 

 40.308 

 28.134 

 29.569 

 26.839 

 8.091 

 0.002 



13-394 

 48.294 



2I h I m + 





19-177 



0.3 



I9.297 



0.3 



I9.I45 



4.0 



I9.467 



I.O 



I9.608 



O.4 



I9.226 



3-o 



I9.208 



3-o 



I9.263 



3-o 



I9.3IO 



3-o 



19-254 



2.0 



I9.307 



2.0 



I9.258 



3-o 



I9.244 



3-o 



I9.269 



3-o 



I9.287 



8.0 



I9.276 



3-o 



19.372 



4.0 



I9.262 



3-o 



I9.27I 



2.4 





51.4 



Declination. 



Br. 

 Pi. 

 Abo 

 Tay. 

 12 Yx x 

 12 Yr 2 



6 Yr. 

 Eadi 

 Yarn. 



7 Yr. 

 Bad 



2745 



xx 1476 



482 



9785 

 1887 

 1887 

 1358 

 5107 

 9477 

 1743 

 2059 



N. 7 Yr. 2394 



9 Yr. 1976 

 Bomb. 4784 



10 Yr. 3532 

 Green. Yearly 



Besults. 



1753.8 



1755 



1 



1805.8 



1S00 



13 



1828. 



1830 



33 



1835. 



1835 



9 



1839. 



1840 



3i 



1844. 



1845 



36 



1851.2 



1850 



35 



1853.2 



1845 



18 



1854.0 



i860 



113 



1857.0 



i860 



44 



1858.8 



i860 



10 



1864.2 



1864 



19 



1871.9 



1872 



14 



1877.9 



1875 



7 



1883.6 



1880 



15 



1893.7 



1893 



10 



1857.69 



1875 



408 



33 

 46 



55 

 56 

 57 

 59 

 60 



59 

 63 

 63 

 63 

 64 

 67 

 68 

 69 

 73 



37°+ 



43-9 

 34- o 

 4-7 

 30.47 

 55-71 

 22.02 

 48.67 

 23.2 

 22.6 



40.53 

 41.8 

 49.69 

 8.90 



0.7 

 26.61 

 12.43 



68 0.150 



+34 

 +21 

 +12 



+ 11 



+ 10 



+ 8 



+ 7 



+ 8 



+ 



+ 



+ 



+ 



+ 



+ 



13.76 

 26.49 



54- ir 

 29.19 



3.00 

 36.89 

 10.90 

 36.32 

 37-25 

 19.02 

 18.51 



9.90 

 51.16 



0.02 

 26.54 

 11.81 



38°7'+ 





57.66 



0.2 



60.49 



o-3 



58.81 



4.0 



59.66 



0.5 



53.71 



3-o 



58.91 



3-o 



59-57 



3-o 



59-52 



3-o 



59-85 



3-o 



59-55 



3-o 



60.31 



2.0 



59-59 



3-o 



60.06 



3-o 



60.72 



4.0 



60.07 



3-o 



60.62 



2.4 





40.4 



Probably an error of 5 // in Quetelet's declination, hence it has been discarded. 



