Burnham: Measures of Proper Motion Stars 
10533. X Cygni. 02 413. (5.0...6.3) 
R. A. 20” 42 m 44 s Decl. + 36° 3' 
AB and C (9.3) 
1912.427 
105°10 
8 4 "88 
•430 
105.17 
84.80 
•465 
105-15 
84-95 
1912.44 
105.14 
84.88 
C is DM (35 0 ) 4269. Nothing can be inferred as to the 
proper motion of the close pair from the meridian positions. 
Some of the results are: 
Auwers (F. C.) 
0"022 
in 
3 2 3?3 
Auwers (cor’d) 
O.OII 
in 
280.4 
Newcomb 
0.012 
in 
118.1 
Boss 
0.012 
in 
161.7 
From the measures of the small star on 13 n by 02 and (3 
(1852-1912), the corrected proper motion of X Cygni is: 
o"oo8 in 95?5 
It is at least probable that A and B constitute a system of 
the 61 Cygni type. 
10535. r| Cephei. (3.5.. .11.2) 
R. A. 20 h 42 m 51 s Decl.+ 6i°22' 
1907.329 40? 75 8o’.'37 
.348 40-33 80.13 
.444 40.28 79-81 
I 907-37 40-45 80.xo 
The prior measures are : 
1886.93 81?15 I09"34 2n Eng 
1894.36 81.39 108.64 2n Eng 
The proper motion of the principal star is: 
Measures of C o'.'o^S in 34°4 
The measures of both companions should be continued. 
Some of the results of meridian positions are: 
Paris 
0" 122 
in 
3 i°o 
Porter 
0.113 
in 
26.0 
Auwers 
0.106 
in 
18.6 
Boss 
0.114 
in 
32-7 
10555. 22731. (7.7...10.8) 
R. A. 2o h 44 m 31 s Decl. + 39 0 21' 
1906.906 
•964 
A and B 
88? 5 
88.2 
4?’oi 
4.10 
1906.93 
88.3 
4-05 
A and C (13.2) 
1906.906 
173-0 
i 7"36 
6.964 
175-0 
17.11 
7.312 
I 7 I -9 
17.20 
1907.06 
173-3 
17.22 
A and D (13.2) 
1906.906 
245 ° 1 
I 9?25 
6.964 
244.2 
18.88 
7.312 
245-9 
19-55 
1907.06 
245-1 
19.23 
From my four sets of measures (1879 to I 9 ° 7 ) the proper 
motion of r) Cephei is: 
o"8i4 in 10? 1 
The correction to the meridian value is small: 
Newcomb 
o '.'825 
in 
6?9 
Auwers 
0.816 
in 
6-7 
Boss 
0.826 
in 
6-7 
Later measures: 
1910.493 
4i?68 
78" 12 
•509 
41.30 
78.37 
•512 
41-25 
78.07 
1910.50 
41.41 
78.19 
10546. 
15 Delphini. (5.5. 
.- 13 - 6 ) 
R. A. 2o' 
1 43 m 55 s Decl. + 
12° 6' 
A and C (10.5) 
1908.383 
8i?98 
108'.'04 
.422 
81.70 
107 96 
.425 
8 i .93 
108.11 
1908.41 
81.87 
108.04 
The small stars measured because of the singular discord¬ 
ance of the prior results. There is little probability of any 
real change. 
A and C 
1895.80 
I 7 I -3 
i6?4i 
in 
Ho 
1904.93 
175-2 
I 7-38 
in 
Lewis 
A and D 
1895.80 
249-0 
i 8"53 
in 
Ho 
1904.93 
247-3 
14-13 
in 
Lewis 
10559. 4 Aquarii. 
22729. (5.9...7.2) 
R. A. 20" 45 m 4 s 
Decl. —6° 4' 
AB and C (13.2) 
19T2.40S 3i6!83 68 "8g 
.411 316.07 69.13 
-430 316.47 68.10 
1912.42 316.46 68.71 
AB and SD (6°) 5603 (9.1) 
1912.408 
328?25 
131^46 
.411 
328.22 
131.26 
• 430 
328.60 
131.26 
1912.42 
328.36 
131-33 
264 
