Burnham: Measures of Proper Motion Stars 
Evidently the large star has no sensible proper motion. It 
AB and D (10.5) 
small: 
der of the cluster h 97. 
1909.458 
i82?58 
248"23 
Auwers 
o"oio in 
204? 1 
• 493 
182.70 
248.19 
Boss 
0.011 in 
62.5 
-496 
182.57 
247.92 
1909.48 
182.62 
248.11 
7 . 35 Cassiopeiae. S 397. 
(6.6...8.5) 
The only earlier measure 
is: 
R. A. i h i3 m 4* Decl. + 64° 2' 
1880.63 i8i?68 
25o"o6 
in 
1909.589 
347-30 
53 ”47 
No other measures of C. 
From the measures of 
•592 
347-14 
53-32 
for the proper motion of AB: 
.649 
347-45 
53-46 
Measures 
o"i56 in 
ii7?8 
1909.61 
347-30 
53-42 
Porter 
0.172 in 
138.6 
A. G. Plels. 
0.199 in 
131-2 
little change 
in the angle. 
The proper motion is 
Auwers 
o"o69 
in I34?9 
Groombridge 0.062 
in 106.0 
724 . 02 (App.) 16. (6.5 
...9.1) 
Boss 
0.061 
in 103.4 
R. A. i h i6 m 18 s Decl. + 16 0 34' 
1907.750 
I 37°93 
64^93 
706 . 2ii2. (8.5. 
.9.0) 
-772 
138.18 
64.91 
R. A. i h i3 m 
40 s Decl. + 45 0 42' 
.788 
137-95 
64.87 
A and B 
1907.77 
138.02 
64.90 
1912.507 
331-6 
21 "42 
Comparing this with the position by Dembowski 
.562 
331-3 
21.82 
have for the proper motion of the large star: 
.564 
330-6 
21.56 
o"o48 in 305?9 
1912.54 
331-2 
21.60 
Bl. 
One of these stars has a proper motion of o"o32 in 2c>i?4 
(± 180 0 ). Later measures of the very faint star, C, will show 
whether B has any movement. 
710 . A. G. 16. (8.6...9. 7 ) 
R. A. i h I3 m 54 s Decl. + 13 0 8' 
1906.796 
.964 
190:2 
190.7 
3 o" 8 3 
30.75 
1906.88 
Probably fixed. 
190.4 
30.79 
732 . ty Cassiopeiae. P 1101. (4.5. ..13.5) 
R. A. i h 17™ 27 s Decl. + 67° 30' 
A and C (8.9) 
1911.622 
I09?8 
26" 4 7 
.625 
109.3 
26.54 
.644 
109.9 
26.64 
.663 
IIO. I 
26.62 
1911.64 
109.8 
26.57 
From the six positions on 24 n by 2 , A and P (1831-1911) 
we have an independent value of the proper motion of il> 
Cassiopeiae: 
712 . 
A.G.17. (8.5.. 
.10.0) 
o"o 87 in 65 
>.2 
R. A. i h 
I4 m 29 s Decl. + io° 50' 
From meridian observations it is given: 
1906.796 
9§?3 
Auwers o"o67 
in 
70? 8 
54"56 
Boss 0.086 
in 
66.8 
• 964 
98.7 
54 . 6 i 
Newcomb 0.076 
in 
66.1 
1906.88 
98.5 
54-58 
718 . 
2 ii 5 - ( 7 - 3 -.. 
7 - 5 ) 
734 . 02 (App.) 117. 
(7 
5 -.- 9 -o) 
R. A. i h 
I 5 m 42 s Decl.+ 57 0 31' 
R. A. i h I7 m 37 s Decl. + 38° 24' 
AB and C (12.8) 
A and B 
1909.458 
278?9 
44 " 8 5 
1911.622 I02?83 
36T79 
• 493 
279.0 
44-28 
.625 102.37 
37-56 
.496 
278.4 
44-71 
.644 102.36 
37.22 
1909.48 
278.8 
44 -61 
1911.63 102.53 
37-19 
94 
