Burnham: Measures of Proper Motion Stars 
1908.214 
.252 
.266 
A and E 
275-80 
275-87 
27583 
i68'.'8o 
169.41 
169.25 
1908.24 
275-83 
A and D 
169.15 
1908.214 
27! 60 
i84:'76 
.252 
27.53 
1&4.99 
.266 
27.68 
184.96 
1908.24 
27.60 
F and E 
184.90 
1908.214 A R.A. 
— 290T87 
A Deck + 177T13 
.252 
290.76 
177.42 
.266 
290.78 
177.29 
1908.24 
290.80 
177.28 
Struve’s A, B and C are symmetrically placed in the equi¬ 
lateral triangle of large stars, DEF, the last two being Lalande 
2 3 S 3 i and 23545. The only measures are by Dembowski: 
AF 
1870.99 
I 43°83 
I 98'.'32 
3 n 
A 
AE 
1870.99 
276.33 
175-51 
3 n 
A 
AD 
1870.99 
25.90 
184.08 
3 n 
A 
FE 
1870.99 
301.62 
342.29 
3 n 
A 
FE 
1908.24 
301.37 
340.58 
3 n 
P 
Evidently these large stars have some proper motion as well 
as AB, the amount of which will more definitely appear here¬ 
after. 
E has an exceedingly faint companion: 
E and e (15- 5 ) 
1909.304 233?6 ii"i6 
h 1327 is about 2"' directly p E, but too diffuse for measure¬ 
ment. 
6218. 2 1662. (7.7...10.0) 
R. A. 12” 30™ 16 s Deck + 57 0 14' 
1907.217 234?o 19"72 
7.271 234.3 19.65 
8.039 234.9 19-70 
1907.51 234.4 1969 
Perhaps a small advance in the angle. 
6225. 2 1664. (7.7...8.8) 
R. A. I2 h 32™ 7 s Deck — io° 51' 
A and B 
1907.006 
•137 
.214 
24 i °4 
241.8 
241-3 
23 " 8 4 
24.03 
24.19 
1907.12 
2415 
24.02 
A and E 
1907.006 
io 9°35 
ii 8"85 
• 137 
109.80 
118.74 
.214 
109.50 
118.95 
1907.12 
109-55 
118.85 
E and F 
1907.006 
111 ?o 
94 -To 
• 137 
no.9 
93-35 
.214 
III .3 
93.60 
1907.12 
111.1 
9368 
C and D 
1907.214 
26 5 ?6 
32'.'45 
• 233 
265.8 
32.63 
.258 
265.3 
32.48 
1907.23 
265.6 
32.52 
A and C 
1907.137 
306 °.6 
62 "49 
.214 
306.2 
62.48 
• 233 
306.4 
62.54 
1907.19 
306.4 
62.50 
B and C 
1907.214 
329.6 
56"59 
.233 
329.5 
56.77 
.258 
329.0 
56.67 
1907.23 
329-4 
56.68 
The meridian positions of the large stars, A, E and F, in 
Lamont and Weisse show no material relative change, and it 
is at least probable that the change in AB is due to the proper 
motion of the smaller component. To determine this hereafter, 
the small stars, C and D, measured by Doolittle, are connected 
with the principal components. The only previous measures, 
of the angles at the Temple Observatory, are too discordant 
for use in this connection. 
The measures of AB by 2 and P (1830-1904) give for the 
apparent motion of A: 
o'.T6i in 
i8?9 
6229. 
2 1665. 
(8.5. 
..9.0) 
R. A.i2 h 
32 m 30 9 
Deck 
— 4 ° 40 ' 
1910.186 
99°8 
8'.'72 
.206 
98.3 
8-97 
•244 
99-5 
8.90 
1910.21 
99.2 
8.86 
No change, h 1375 is about 15' distant, nearly f; small and 
bright in the middle. 
h 1375 and star 11.7 m 
1910.186 
30 i ?3 
i8i"75 
.206 
301.2 
181.63 
1910.20 
301.2 
181.69 
6230. 
S 639. (8.0.. 
• 9 - 3 ) 
R. A. 12" 
32 “ 33 s Deck 
— 3 ° 43 ' 
1911.302 
i° 7°93 
52"37 
.356 
107.78 
52.65 
■373 
107.98 
52.67 
>—1 
4 - 
107.90 
52.56 
