Burnham: Measures of Proper Motion Stars 
A and C (10.8) 
1909.186 
207? 20 
81 "61 
.266 
207.05 
81.61 
• 304 
207-33 
8 i .37 
1909.25 
207.19 
8 i .53 
The measures furnish no evidence of 
any proper motion in 
2 2376: 
1880.53 207 
?6i 81''30 
2n Bl. 
8779. 5 Aquilae. 2 2379. 
(5.6...7.4) 
R. A. i8‘ 
‘40™ 17 s Decl.- 
-i° 5 ' 
A and C (11.2) 
1912.430 
147° 1 
26 "63 
• 465 
146.5 
25.93 
.504 
M 5-6 
26.45 
• 507 
145.8 
26.45 
1912.48 
146.3 
26.34 
A and B have a small common proper motion. The measures 
of the faint star (1880-1912) show that this is not all in 
declination as would appear from the meridian positions. 
Measures of AC o'.'o38 
in I 28?5 
Auwers 
0.034 
in 192.8 
Boss 
0.031 
in 194.0 
8781. 46 Draconis. H VI. 37. 
(5.1...10.7) 
R.A. i8 h 
40"’ 18 s Decl. + 55 0 25' 
1910.203 
159-75 
146 "95 
.206 
160.10 
146.32 
.225 
I 59-83 
146.34 
1910.21 
159.89 
146.54 
The meridian observations show no certain proper motion in 
46 Draconis; and the 
measures of the 
10.7 m star give the 
same result: 
1879.98 160? 43 I46'.'76 
2n Bl. 
Auwers 
o"o4i in 
295-7 
Boss 
0.023 in 
344-9 
Groombridge 0.026 in 
342-9 
8792. 
22393. (7-3-. ■ 
10.0) 
R. A. 18" 
4i m 6 s Decl.+ 38° 11' 
A and C (11.0) 
1910.225 
300?03 
179"02 
.244 
300.19 
178.88 
.260 
299.93 
179-13 
1910.24 
300.05 
179-01 
8798. 2 
2398. (8.2. 
• 8 . 7 ) 
R. A. i8 h 41™ 
34 s Decl. + 59° 25 ' 
A and B 
1907.312 
I5i°7 
i 7"09 
• 329 
151.8 
17.19 
• 348 
I5I-7 
17.11 
I907-33 
I5I-7 
1 7-i3 
1909.170 
i5i°8 
T7"X3 
.266 
152.0 
17-13 
• 304 
151-6 
17-05 
• 342 
I5I-9 
17.11 
1909.27 
151-8 
17.10 
The change in B is very slow at this time. 
A 
1907.312 
• 329 
.348 
and C (11.0) 
235 ° 6 
234 - 9 
235 - 8 
5or7i 
50.90 
50-55 
1907-33 
235-4 
50.72 
1909.170 
23C07 
5o"74 
.266 
231.25 
50.64 
• 304 
230.50 
50.89 
• 342 
230.28 
50.79 
1909.27 
230.78 
50.76 
The measures of C are continued for improving the proper 
motion of A. The change in AC is principally in angle. 
Stumpe 2^303 in 325?4 
Porter 2.286 in 324.5 
Kustner 2.289 in 325.4 
Krueger 2.299 in 325.6 
The principal star is given a parallax of about o"3. 
8810. 22391. (6.2...9.0) 
R. A. i8 h 42”' 14 s Decl. — 6° 8' 
1907-523 332 ?3 37'-94 
.540 332.5 37-90 
.581 332-7 38.18 
1907-55 332.5 38.01 
No change. There is a 13.5m star near B, 107^4:i2"6. 
8822. 2 2397. (7.2...9.5) 
An earlier position is: 
1880.58 2Q9?69 I78'.'i8 2n Bl. 
If the measures are substantially correct, the Greenwich 
proper motion of A is in error, at least as to direction. Ac¬ 
cording to that, the distance of the small star should decrease 
something more than 1" in the interval. 
Greenwich o"o38 in 277?5 
R. A. 18" 42™ 39 s Decl.+ 31 0 16' 
1907.542 266 °6 3"98 
8.520 267.7 3-94 
8-537 267.7 _ 4-25 
1908.20 267.3 4.06 
No motion. 
234 
