Burnham: Measures of Proper Motion Stars 
A and C (T3.7) 
1912 
.526 
347 ° 3 ° 
55"i8 
.562 
347-90 
55.38 
-564 
348.17 
54-97 
1912, 
•55 
347-79 
55-i8 
Very little relative change in AB, and the proper motion 
must be the same. 
A 
0". 030 
in 
I 45°2 
Auwers 
0.015 
in 
40.9 
Groombridge 
0.015 
in 
93-7 
Boss 
B 
0.044 
in 
87.4 
Groombridge 
0.045 
in 
67.9 
Boss 
The faint star is measured for determining the real motion 
in A, if any. B is Groombridge 3598. 
11327. 22838. (6.0...8.8) 
R. A. 2i"48 m 21 s Decl. — 3 0 52' 
1912.810 i84?o5 I9"20 
.813 184.05 19.19 
.829 184.55 19 -18 
1912.82 184.22 *9-i9 
The measures in point of time are sufficient to give the move¬ 
ment of A with great accuracy. From the four positions on 
11 n by 2 , A and |3 (1839-1912) the proper motion of the large 
star is: 
o'.'030 in 189^9 
The bright star is not given in Boss’ General Catalogue. 
11334. 22843. (7.0,. .7.2) 
R. A. 2i h 48 m 37 s Decl.+ 65° 1T 
AB and C (10.5) 
1912.353 275?73 56?25 
.389 276.30 56.13 
.408 276.73 55-79 
1912.38 276.25 56.06 
The proper motion of AB is small: 
Groombridge o"o22 in 209?7 
The only other position of C is from the Greenwich Astro- 
graphic Catalogue. With a scale value of 30o"o, we have from 
the difference of the coordinates : 
1895.7 275?8 56"o 
11346. 13 75- (8.1...8.5) 
R. A. 2i h 49 ra 4o* Decl. + io° 19' 
AB and C (12.5) 
1912.408 
212?S3 
48"40 
.465 
212.65 
48.40 
•504 
212.73 
48.64 
1912.46 
212.64 
48.48 
For the proper motion of AB. This from meridian positions 
is given: 
Porter o"i 64 in 232?4 
Glasgow 0.203 hi 209.1 
11353. Ho 609. (9.5...9.8) 
R. A. 2i h 5o m 4 s Decl.+ 29 0 9' 
I 909 - 5 I 5 173-7 3 "o 3 
.725 176.6 3.06 
1909.62 175.1 3.04 
The early measures are singularly discordant in distance. 
(See General Catalogue .) 
11355. Battermann. (9.2...9.3) 
R. A. 2i h 50™ 7 s Decl.+ i5°2' 
1908.537 
• 556 
•573 
A and B 
i62?5 
162.8 
162.9 
1 "54 
i -54 
1.56 
1908.56 
162.7 
1 -55 
A and C (15.0) 
1908.556 
302?2 
22 "83 
•573 
300.2 
22.87 
1908.56 301.2 22.85 
A and B have the same proper motion, while C is fixed in 
space. Later measures of this will give the proper motion of 
AB. 
A. G. Ber. 0^231 in 14H2 
11359. H 3072. (8.5...10.7) 
R. A. 21 6 50™ 25 s Decl.+ 58° 53' 
1910.627 
77°8 
I3"20 
.660 
79-4 
12.95 
.666 
78.2 
13.00 
1910.65 
78.5 
13-05 
No early measures. 
11364. 
02 454 - ( 7 - 0 .. 
.9.0) 
R. A. 21 11 
5o m 34 s Decl. + 
23 ° 46' 
A and C (10.8) 
190S.594 
264?88 
43 "24 
•597 
265.03 
43-20 
•633 
264.50 
43.06 
1908.61 
264.80 
43-17 
No change since 1895. 
279 
