Burnham: Measures of Proper Motion Stars 
9300 . 
3 Cygni. (6.4.. 
.10.8) 
R. A. 19” 
20™ 28 s Decl. + 24 0 42' 
1911.184 
66?95 
34-02 
.280 
66.85 
VC 
cc 
.299 
66.80 
33-97 
.302 
67.29 
33-97 
1911.27 
66.97 
33-95 
From the seven positions by 02 and (3 (1867-1911) the proper 
motion of 3 Cygni is: 
o" 65 i in I95?3 
Some of the star catalogue results are: 
Auwers 
o"6 5 8 
in 
198? 1 
Paris 
0.655 
in 
196.9 
Boss 
0.658 
in 
196.5 
9304 . H 1395. (8.8...8.8) 
R. A. i9 h 20 m 52 s Decl. + 36° 53' 
1907.542 66 °. 1 2"7i 
8.444 65.1 2.67 
8.520 64.4 2.70 
1908.17 65.2 2.69 
Probably fixed. 
9308 . 
2 
2521. ( 5 - 5 -• 
.10.3) 
R. A. 19" 
21™ 
14 s Decl. + 19 0 39' 
A and B 
1908.444 
37°97 
24V90 
.460 
37-87 
24-95 
•479 
38.67 
24.98 
1908.46 
38.17 
24.94 
A 
and C (9.5) 
1908.444 
32 2?40 
7 o" 14 
.460 
322.53 
70.37 
•479 
322.60 
70.06 
1908.46 
322.51 
70.19 
A and D (9.5) 
1908.444 
63 ? 8 3 
149-72 
.460 
64.03 
149-51 
•479 
64.10 
149-59 
1908.46 
63-99 
149.61 
The proper motion of the principal star (Bradley 2462) as 
given from meridian observations seems to be certainly wrong 
in amount and direction : 
Auwers 
o"o 75 
in 
237°8 
A. G. Ber. 
0.074 
in 
223.3 
Boss 
0.057 
in 
197.4 
The five sets of measures of AB by 2 , A, Per and 3 (1829- 
1908) give for this motion: 
o"o4i in i78?4 
This is confirmed by the measures of AD which give: 
o"o43 in i6i?2 
The only prior position of this star is: 
1878.61 64^8 I49"46 3n B 1 
Of AC there is only a single measure, and later observations 
should be made of both. 
There is a 14 m star about the same distance as P» from A, 
73 - 5 :25?o. 
9317 . 3 1286. (8.3...9.0) 
R. A. I9 h 2i m 39 s Decl.+ 35 0 41' 
1907.523 
7 - 542 
8 - 370 
8.482 
A and B 
io4?7 
105-7 
103.6 
102.9 
6 ". 16 
6.51 
6.19 
6.12 
1907.98 
104.2 
6.24 
1909-534 
I02?2 
6"50 
•570 
102.5 
6.12 
•589 
101.8 
6.27 
1909.56 
102.2 
6.30 
B 
and C (12.5) 
1908.482 
I 45°6 
o?g8 
.520 
141-4 
0.90 
1908.50 
143-5 
0.94 
A and D (11.0) 
1908.518 
38! 7 
37"53 
.520 
38.3 
37-32 
• 537 
38.5 
37-92 
1908.52 
38.5 
37-59 
B and D 
1908.518 
28?9 
35-51 
-520 
28.6 
35 -16 
•537 
29-5 
35-72 
1908.52 
29.0 
35-46 
Further measures are needed to determine the true relation 
of the three components of the triple. There is proper motion 
in A or B of about o"i8. (See General Catalogue Part II.) 
The measures of D should be continued. 
9320 . Ho 449. (9.0...12.3) 
R. A. I9 h 2i ni 41 s Decl. + 27 0 8' 
1907.348 i77?8 13^69 
.351 i 79 -o 13-68 
.463 179.9 13.87 
1907.38 178.9 13.75 
Measures discordant, and change doubtful. 
245 
