Burnham: Measures of Proper Motion Stars 
A and D (12.0) 
A and C (13.0) 
1906.906 
284^8 
H 9-99 
1910.093 
iS°-8 
23"57 
.928 
284.7 
120.58 
. 128 
150.9 
23.15 
.964 
284.7 
119.76 
1910.11 
150.8 
23-36 
1906.93 
284.7 
120.11 
Change in AC? 
A very accurate value of the proper motion of A can be 
found from the continued measures of the three companion 
stars. C is DM (2 0 ) 1834. 
The proper motion of the principal star is: 
Auwers 
Ol'20 3 
in 
294 °S 
Porter 
0.209 
in 
298.9 
Boss 
0-195 
in 
296.6 
4363. 2 
1168. 
(8.0...11 
.8) 
R. A. 7 h 52 m 
22 s 
Decl. + 5 
° 57 ' 
1906.906 
2I7‘ 
]6 
6 '.'o7 
.924 
217. 
7 
6.38 
.966 
218. 
.6 
6.00 
1906.93 
218. 
0 
6.15 
Perhaps a little change in the angle. 
4365. 2 1165. (8.0...10.3) 
R. A. 7" 52 m 41 8 Decl. + 54 0 5 7' 
AB and C (10.8) 
1910.835 277%3 2i6"95 
.856 277.53 216.89 
1910.85 277.58 216.92 
Evidently the close pair has no sensible proper motion. 
1881.03 277 ? 5 i 216'.'57 2n Bl. 
4366. 2 1159 rej. (7.4...9.9) 
R. A. 7" 52'" 45 s Decl. + 72 0 8' 
1910.856 
96^0 
35"23 
.895 
94-9 
35-29 
•931 
96.0 
35-27 
1910.89 
95-6 
35-26 
Never previously measured. 
4475. 2 1195. (8.3...10.8) 
R. A. 8 h 5 m 10 s Decl. + 30° 49' 
A and B 
1909.821 
332 ?o 
8'.'8o 
10.093 
331-8 
8.94 
10.107 
33 T -9 
8.78 
1910.01 
331-9 
8.84 
4477. I Cancri. 
R. A. 8 h 5 m 20 s Decl. + 18 0 1' 
C and P 1243 
1909.782 
A Decl. + i03"7i 
09.859 
103.20 
10.107 
103.09 
10.109 
103.51 
10.148 
102.96 
10.167 
102.78 
1910.03 
+ 103.21 
There is nothing in these measures, which were commenced 
in 1891, to indicate any variable motion in C. Recent spectro¬ 
scopic observations of that star, made at the Yerkes Observa¬ 
tory, give the same result. The prior measures are all given in 
Part II of the General Catalogue. 
4501. 2 1193. (6.0...9.0) 
R. A. 8 h 7 m 28 s Decl. + 72 0 47' 
A and B 
I 9 H -755 
87 °o 5 
43-69 
11.950 
86.80 
43-40 
12.008 
87.00 
43-50 
1911.90 
86.95 
43-56 
The proper motion given in the General Catalogue, Part II, 
p. 1071, belongs to another star. The movement of A from 
meridian position is given : 
Auwers 
o"o54 
in 
202° 7 
Boss 
0.027 
in 
173-4 
Gr. (1900) 
0.024 
in 
199.2 
The measures of the small star by 2 , A and P (1831-1911) 
give a different direction: 
o'.'o20 in 29?6 
There is no probability of any motion in the companion which 
would substantially change this result; but I have connected 
a 12 m star for future comparison. 
B and C 
I 9 H -755 
2?57 
54 " 9 i 
• 950 
2-37 
54-51 
1911-85 
2-47 
54-71 
4506. 
h 2435. (10 y 2 . 
.11) 
R. A. 8 h 
7 m 45 s Decl. — 
5 ° 24' 
1911.796 
204? 1 
7 "o8 
12.066 
207.1 
7-33 
1911.93 
205.6 
7.20 
H 2435 is in h 496. Only recent measures. 
I5S 
