Burnham: Measures of Proper Motion Stars 
DM ( 
11° 
) 646 (5.6... 
13 . 4 ) 
97 Tauri (5.4.. .9 
5 ) 
R. A. 4” 
39 " 
21* Decl. + 
ii° 29' 
R. A. 4" 44 m 
21 s Decl. + 18 0 38' 
A and B 
A and DM (18 0 ) 742 
1911.663 
202 ?8 
38781 
1909.666 
302?50 
174738 
.720 
204.3 
39-oS 
•744 
302.50 
174.66 
1911.69 
203.5 
38.94 
•859 
302.70 
174-47 
A 
and C (13.1) 
1909.75 
302.57 
174-50 
1910.7S0 
231 °73 
9°-59 
No other measures. The proper motion of 97 Tauri is: 
11.663 
232.63 
90.89 
Auwers 
o'.'o75 in 
ii6?9 
11.720 
232.88 
90.45 
Newcomb 
0.090 in 
112.6 
I 9 H -39 
232.41 
90.64 
Boss 
0.091 in 
113-2 
measures. 
The proper motion of the large star is: 
Boss 
o"o66 in 
90?8 
7 Orionis (5.O...8 
• 7 ) 
R. A. 4 h 48’" 
17 s Decl. + 9 0 57' 
DM (45° 
) 992 (6.5... 
11.8) 
1907.845 
248788 
171723 
-865 
248.80 
I 7 I -54 
R. A. 4 1 ’ 
42" 
54 s Decl. + 
45 ° 39 ' 
• 879 
248.60 
171.28 
1909.818 
87?20 
101"38 
•974 
248.53 
171.76 
.820 
86.73 
101.64 
The prior measures are not consistent 
with this 
position. 
-933 
86.86 
101.73 
1887.09 247?92 
171778 
211 
Eng 
1909.86 
86.93 
101.58 
1895.09 248.20 
172.59 
2n 
Eng 
1907.89 248.70 
171-45 
4 n 
P 
No other measures. The large star is Groombridge 884. 
The proper motion is given : 
A. G. Bonn 
07676 
in 
14573 
Paris 
0.692 
in 
145-4 
Porter 
0.666 
in 
147.2 
Groombridge 
0.684 
in 
145-4 
A comparison of a mean of the first two with the last indi¬ 
cates a motion of o7i23 in 180° for the large star, but this is 
uncertain, and further measures are needed. The small star 
is DM (9 0 ) 682, and is given in Weisse and A. G. Leipsic. In 
the former the observed difference is erroneous. 
1 Orionis (4.5...IO.0) 
R. A. 4 h 43 m 20 s Decl. + 6° 45' 
1907.675 
138748 
94792 
.692 
138.48 
94-56 
.769 
138.15 
94-36 
For the proper motion of 
the large star we have the following 
measures: 
1852.87 
i28?o8 
112748 
2n 
02 
1869.10 
130.67 
107.10 
in 
02 
1884.15 
133-75 
102.22 
211 
H 2 
1907.71 
138.37 
94.61 
3 n 
P 
The corrected motion of 
1 Orionis is: 
0^472 in 86? 1 
This is given 
from meridian positions: 
Auwers 
ol'444 in 
8779 
Porter 
0.449 in 
87-3 
Newcomb 
0.466 in 
83-9 
Boss 
0.472 in 
87.6 
Auwers 
o 7 132 in 
16777 
Porter 
0.134 in 
166.0 
Gr. 10-yr. 
0.019 in 
270.0 
Boss 
0.145 in 
157-8 
isured a nearer star: 
A and a (12.8) 
1907.845 
4°3 
337o8 
.865 
3 -i 
32.86 
• 974 
3-6 
33-28 
1907.89 
3-7 
33-07 
101 Tauri (7.0...12.2) 
R. A. 4 h 52 m 31 
s Decl. + 15 0 44' 
1910.780 
145750 
105799 
• 835 
145.86 
106.83 
.838 
146-38 
106.52 
1910.82 
145-91 
106.45 
No other measures. Small proper motion. 
Auwers o"o87 in io5?3 
Boss 0.104 in 
109.1 
19 
