Burnham: Measures of Proper Motion Stars 
Bradley 536 (7.0. ..9.5) 
R. A. 3 h 46 m 3* Decl. — i°3i' 
1907.636 
.638 
.657 
I54-IO 
153-68 
I53-65 
95-56 
95-55 
95-60 
Piazzi III. 215 ( 6 . 2 ... 9 . 5 ) 
R. A. 3" 53 ra 54 s Decl. + 17 0 51' 
The measures are obviously inconsistent and nothing can be 
safely inferred as to the real relative motion if any. 
1909.666 
.703 
.706 
1909.69 
277:30 
277.48 
277-33 
161"17 
161.22 
161.48 
277-37 
161.29 
1886.52 
153-57 
95 "i 8 
2n 
Eng 
1894.95 
154.08 
95.02 
3 n 
Eng 
1907.64 
I53-8 i 
95-57 
3n 
P 
The small star is D’M (17 0 ) 664. No other measures. The 
The small star is not in DM, and I do not find it in any of the 
catalogues examined. A mean of the first two measures com¬ 
pared with the last would indicate a proper motion of o"o28 in 
332? 1 for the large star, but evidently this cannot be right, since 
one of the measures must have a considerable error. It is 
probable that the two stars have the same motion. Later 
measures will show. 
The motion of A from meridian positions is also uncertain: 
Auwers o " i 82 in 262?4 
Boss 0.026 in 240.0 
Lalande 7097 (7.0. .. 10.2. . . 10.3) 
R. A. 3 h 46™ 16 s Decl. + 59 0 17' 
A and B 
1907.845 356N7 I49"85 
.848 356.23 149.82 
.867 356.10 150-27 
A and C 
of the principal 
star is: 
A. G. Berlin 
o"n8 
in 
io8!8 
Boss 
0.141 
in 
105.2 
Newcomb 
0.143 
in 
104.9 
37 Tauri 
(4.2.. 
-9-4) 
R- A. 3 h 57 m 36 s 
Decl. + 
21 0 45' 
1907.581 
.638 
.657 
i 89?45 
189.40 
189.25 
137-52 
137-35 
137-47 
For the proper motion of A we have the following positions: 
1853-83 
i86?9i 
I38"69 
in 
02 
1880.73 
188.65 
138.33 
4 n 
Doub. 
1887.08 
188.25 
137-41 
211 
Eng 
1907.62 
189.37 
137-45 
3ii 
P 
From these measures the corrected proper motion of the 
principal star is: 
o"io6 in iii?7 
This has been given from meridian positions: 
1907.845 
40? 10 
i 87"47 
Auwers 
o"o94 
in 
128? 1 
.848 
40. oS 
187.63 
N ewcornb 
0.113 
in 
120.9 
.867 
40.12 
1S7.69 
Boss 
0.113 
in 
124.4 
The only 
measures 
are: 
AB 
1893.26 
355° 2 1 
I53"38 
3ii 
Eng 
1907-85 
356.17 
149.98 
3H 
P 
AC 
1893.26 
38.72 
187.18 
3ii 
Eng 
1907.85 
40.30 
187.60 
3 n 
P 
These positions give the proper motion of the principal star: 
AB R. A. — o". 189 Decl. + o"2i9 
AC 0.292 0.204 
0.240 0.211 
From this and the meridian observations we have: 
Measures o"320 in 3ii?3 
Stumpe 0.375 in 300 -5 
Porter 0.365 in 298.3 
There are two new and nearer companions to the large star 
not previously seen. It will be of interest to see whether either 
belongs to the moving star. 
A and 0 (13.3) 
1907.845 2i4?7 6"97 
.899 217.1 6.78 
39 Tauri (6.5..-8.2) 
R. A. 3 h 58 m i4 s Decl.+21 0 41' 
A and B 
1907.581 
.638 
• 657 
2 ? 6 5 
2.62 
2.70 
i69"43 
169.30 
169.64 
B is Piazzi III. 237. It could not be assumed, without satis¬ 
factory evidence, that a star of this magnitude was fixed. The 
measures of BC, however, show no sensible change, and there¬ 
fore it is practically certain that B has no proper motion. The 
measures of AB are: 
1887.08 3?87 i68"5I 
1907.62 2.66 169.46 
3 n 
3n 
Eng 
P 
1907.87 
215-9 
A and b (12.8) 
6-77 
1907.845 
67? 0 
33'-30 
7.964 
67-3 
33-29 
8.102 
67.9 
33-49 
1907.97 
67.4 
33 36 
The proper motion of 39 Tauri is: 
Measures 
o"i79 
in 
io8?4 
Auwers 
0.205 
in 
124.1 
Hedrick 
0.217 
in 
127.0 
Boss 
0.222 
in 
128.4 
B and C (10.8) 
1907.581 I27?93 61'.'04 
.638 127.65 61.20 
1907.61 
127.79 
61.12 
15 
