20 h 
Burnham: General Catalogue of Double Stars 
Number 
Double Star 
Star Catalogue 
R. A. 1880 
Decl. 1880 
Position 
Angle 
Distance 
Magnitudes 
Epoch 
Observer 
Notes 
10530 
H 3000 
B. A. C. 7209 
20 h 42 32 s 
l829' 
245-4 
i8' 
6 ...15 
1830+ 
H 
I053I 
Ho 143 
I/4022I 
42 36 
46 6 
306 
i 
6 . . .11.5 
1885.90 
Ho 2 
10532 
Ho 141 
L 40169 
42 37 
2 40 
5-8 
0.62 
8.5... 8.7 
1885.74 
Ho 2 
AandB ) 
298.6 
20.38 
...13 
1886.75 
Ho i 
AB and C ) 
10533 
02 4 i 3 
X Cygni 
42 44 
36 3 
122.3 
0.65 
5.0... 6.3 
1842.66 
OS 4 
A and B i 
105.0 
85.22 
... 8.7 
1863.34 
OS 10 
AB and C ) 
10534 
02 4 i 4 
L 40222 
42 50 
41 58 
95-9 
9.88 
7.2... 8.3 
1848.30 
02 6 
10535 
ij Cephei 
42 51 
6l 22 
33-8 
100.54 
3-5--. ii. 2 
1879.35 
ft 2 
10536 
H5226 
0. Arg. S. 20883 
42 54 
-27 49 
70.8 
i5 
7/4- 8/4 
1834-6 
H 
Pale yellow: 
pale blue 
10537 
H 1576 
.... 
42 58 
23 50 
52.2 
3 
II ...12 
1828 + 
H 
10538 
pee 
DM (26) 3995 
42 59 
27 i 
158.9 
1.23 
8.6... 9.1 
1876.00 
4 5 
10539 
Ho 459 
DM (18) 4621 
43 2 
18 27 
359-5 
0-55 
9-5-.-IO 
1893.69 
Ho i 
10540 
2 2728 
P XX h . 324 
43 5 
25 57 
24-7 
4.22 
8.0. . .10.3 
1831.82 
2 3 
8.0 golden 
10541 
Espin 134 
DM (63) 1655 
43 6 
63 6 
264.3 
10.4 
8.5... 9.2 
1902 
Es 3 
(M. N. LXIJI, .72) 
10542 
P 268 
Rad'. 4958 
43 ii 
41 38 
221.4 
0.42 
7-4... 8.3 
1875.88 
A 2 
10543 
Ho 280 
Glasgow 5261 
43 14 
45 8 
75-4 
14.02 
7-0. ..13 
1888.83 
Ho I 
10544 
P365 
0. Arg. N. 21118 
43 36 
51 21 
285.2 
14.80 
8. 5. ..ii. 8 
1892.77 
W 2 
10545 
H 926 
DM (19) 4525 
43 S3 
19 59 
200 
4 
10 .. .IO-1I 
1820+ 
H 
10546 
.... 
15 Delphini 
43 55 
12 6 
21.2 
65-85 
5- 5-- .13- 6 
1901.54 
ft 2 
10547 
KT52 
A. G. Hels. 11640 
44 o 
55 40 
66.4 
4-69 
9.0. . . 9.2 
1890.78 
ft I 
10548 
02(App)2io 
DM (5) 4626 
44 i 
5 6 
122.0 
81.85 
6.0... 8.5 
1875.48 
A 4 
10549 
Hi577 
DM (12) 4474 
44 10 
12 28 
255-5 
I2 
8-9. . .10 
1828 + 
H 
10550 
H 1578 
DM (12) 4475 
44 10 
12 54 
308.0 
8 
10 . . .11 
1828 + 
H 
10551 
H 1580 
DM (55) 4467 
44 18 
55 26 
249.1 
4 
9-10. . .12 
1828 + 
H 
10552 
Espin 93 
DM (51) 2954 
44 18 
51 58 
273.0 
7-4 
6.0. . .11.1 
1901 
Es 
(/I.JV.3784) 
10553 
H 1583 
DM (62) 1858 
44 19 
62 ii 
75-5 
I2 
10 . . .12 
1828 + 
H 
g.om. in DM 
10554 
Espin 31 

44 26 
32 48 
244.6 
9.8 
8.7... 9.0 
1892.9 
Es 4 
A and B ) 
> Red- blue 
140.9 
17-65 
. ..10 
1892.9 
Es 3 
A and C ) 
10555 
22731 
DM (39) 4331 
44 31 
39 21 
86.1 
3-96 
7. 7. ..10. 8 
1830.84 
2 3 
7.7 <*. 
10556 
H 1579 
DM (26) 4006 
44 44 
26 45 
300.7 
3 
10-11 = 10-11 
1828 + 
H 
10557 
P 3 66 
0. Arg. N. 21157 
44 49 
So 3 
128.5 
1.40 
8.2... 8.5 
1876.44 
A 5 
AandB \ 
3-3 
1.07 
10. 7. ..II. 2 
1876.44 
A 5 
CandD [CD = 
106.3 
50.78 
.... 
1876.30 
A 3 
AB and CD ) 
10558 
H 1581 
55 Cygni 
44 50 
45 40 
173-3 
I 4 
5-6. ..ii 
1828 + 
H 
10559 
22729 
4 Aquarii 
45 4 
- 6 4 
24.5 
0.74 
5.9... 7.2 
1829.76 
2 4 
Yel. 
10560 
22732 
DM (51) 2957 
45 5 
51 28 
73-8 
3-99 
6.7... 8.7 
I83I-43 
2 3 
6.7 wk. 
10561 
See 431 
SD (19) 5940 
45 6 
-19 52 
341-7 
2.63 
7-2. ..13- 7 
1897.80 
See i 
(= See 433) 
10562 
22730 
DM (5) 4632 
45 8 
5 56 
339-2 
3-43 
7.8... 7.9 
1830.27 
S s 
Yersh wk. 
10563 
H 1582 
DM (38) 4244 
45 12 
38 5 
328.0 
25 
9-10. ..12 
1828 + 
H 
"A red" 8.4 m. 
in DM 
10564 
HSOOI 
.... 
45 IS 
-16 57 
241 
5 
10 ...10+ 
1830 + 
H 
10565 
02 4 i 5 
W* XX h . 1459 
45 37 
29 58 
237-1 
3-44 
7-5.-. 9-5 
1846.56 
OS 5 
10566 
pe 7 
I/ 40318 
45 37 
30 28 
287.1 
1.51 
6.9.. .10.2 
1875.45 
A 4 
10567 
Hi 5 8 4 
DM (47) 3193 
45 39 
47 38 
220. 6 
3'/2 
10 . . .12 
1828 + 
H 
9.2m. in DM 
10568 
A 612 
DM (7) 4564 
45 43 
7 8 
n-3 
1.54 
9.4... 9.6 
1903.66 
A 2 
(Bui. L. O. No. 50) 
10569 
P250 
L 40340 
45 51 
46 13 
7.6 
20.30 
7.0. ..12.0 
1875.60 
A i 
10570 
Espin 94 
DM (49) 3386 
45 51 
49 41 
13-1 
103.1 
6.5... 
1901 
Es 
A and B ) ( A N 
80.0 
2-4 
9. 5.. .10.0 
1901 
Es 
B and C ) 3784) 
10571 
A 613 
A. G. Leip. n. 10415 
45 57 
5 18 
8.8 
0.80 
8.7... 8.8 
1903.71 
A 3 
(Bui. L. O. No. 50) 
10572 
Hsooa 
B. A. C. 7237 
45 59 
-24 '4 
216.9 
3 
6 ...ii 
1830 + 
H 
10573 
H.C.Wilsonai 

46 : 
-23 50 = 
19.2 
31.06 
8.5... 8.8 
1883.67 
W i 
10574 
P 154 
L 40292 
46 6 
-16 37 
63.0 
2.74 
8.7. . .10.0 
1875.73 
A 4 
10575 
H3004 
.... 
46 15 
62 5 
193-5 
i'A 
13 = 13 
1830 + 
H 
10576 
Hu 272 
80(14) 5873 
46 23 
-14 43 
186.9 
3-64 
9.O. . .12.0 
IQ00.68 
Hu 3 
(A . J. 494) 
10577 
O2(App)2ii 
Rad'. 4987 
46 24 
58 18 
261.7 
115.15 
6.5... 7.2 
1875.96 
J "\ 
10578 
Hn 42 
SD (17) 6113 
46 32 
-17 44 
228.2 
0.99 
8.7... 8.9 
1881.71 
ft 3 
10579 
Hn 43 
DM (2) 4262 
20 46 48 
2 45 
3-7 
1.91 
8.4. . .10.5 
1881.64 
ft 3 
212 
