Burnham: Measures of Proper Motion Stars 
10616. 7 Aquarii. P 1034. (6.0...11.7) 
R. A. 2o h 5o m 
25 s Decl. 
— io° 9' 
A 
and C (9.5) 
1912.507 
66? 5 o 
I76"7i 
• 564 
66.60 
176.46 
at 
OO 
66.65 
176.47 
1912.55 
66.58 
I 7 P -55 
proper motion of A. No other measures 
Auwers 
o"o33 in 
257°8 
Newcomb 
0.010 in 
238.2 
Boss 
0.020 in 
226.5 
10621. 
Ho 460. (6.9.. 
.12.6) 
R. A. 20 h 
50"’54 s Decl.+ 27 0 7' 
A and B 
1911.487 
87?4 
12!'78 
•564 
85-9 
12.33 
.602 
88.3 
12.51 
I 9 II .55 
87.2 
12 54 
A and C (13.0) 
1911.487 
260? 7 
35 ”58 
.564 
260.2 
35-67 
.602 
259-9 
35-57 
I 9 II -55 
260.3 
35-6 i 
No certain change in AB. 
ures of the faint star are: 
1906.59 26 i?3 
The only other complete meas- 
35"67 3 n Doo 
10626. Howe 55. (6.8...11.0) 
R. A. 20" 51™ 2 s Decl.0 0 o' 
1906.755 
6.813 
7-463 
7-465 
A and B 
7i?6 
71.7 
72.5 
72.1 
25'-94 
25-78 
26.19 
25-85 
1907.12 
72.0 
25-94 
1912.408 
7 i °5 
26^35 
.411 
71.4 
26.12 
• 430 
72.0 
26.35 
1912.42 
71.6 
26.27 
If the principal star has the proper motion given in the 
General Catalogue, the companion is moving with it, as there 
has been no relative change since 1879. To test this hereafter, 
I have connected a third small star: 
We have from the star catalogues: 
Bossert 
o"i09 
in 
204°2 
Paris 
0.119 
in 
l80.0 
A. G. Nico 
0.075 
in 
l8o.O 
Porter 
0.094 
in 
208.5 
10634. p 764. (9.0...9.2) 
R. A. 20 h 52 m 22 s Decl. — 9 0 50' 
AB and C (9.0) 
I 909 - 5 I 5 
II2?30 
ioo"24 
•534 
112.18 
100.04 
• 570 
112.48 
100.25 
1909.54 
112.32 
100.t8 
AB and D (9.0) 
I 909 - 5 I 5 
2 I ?50 
I 37 "i 2 
• 534 
21.67 
137 -oS 
• 570 
21.52 
I 37-48 
1909.54 
21.56 
137.23 
AB and a (11.5) 
I 909 - 5 I 5 
90°20 
58" 16 
•534 
89.90 
58.30 
• 570 
90.52 
57-91 
1909.54 
90.21 
58.12 
the distant stars doubtful. 
10640. 
2 2738. (7.2. 
..8.2) 
R. A. 20” 
52™ 57 s Decl. + 15 0 58' 
A and B 
1909.438 
254-7 
15" 10 
• 493 
254-9 
15-26 
.496 
255-2 
15-03 
1909.48 
254-9 
15-13 
A and C (8.0) 
1909.493 
103?07 
210T37 
.496 
103.20 
210.77 
1909.49 
103.13 
210.57 
There may be an error in reducing the distance by Glase- 
napp. 
1875 io 2?8 2og"9 A. G. Ber 
1889.67 103.1 212.09 In Gla 
The proper motion of A is small: 
A. G. Ber. o"oi9 in 282?o 
h 2097 and star 
12.5 m 
1909.493 
194° 9 
96'.'66 
.496 
194.1 
96.80 
1909.49 
194-5 
96.73 
A and C (13.2) 
1912.408 
n8?6 
36" o 5 
• 411 
118.8 
36.30 
1912.41 
118.7 
36.17 
This is about 50' sf 2 2738. 
1886.67 I98?6 98^46 • in Eng 
As this is derived from differences in R. A. and Decl., change 
* is not to be inferred. 
266 
