A CATALOGUE OF BINARY STARS FOR WHICH ORBITS HAVE BEEN COMPUTED. Bt J. E. GORE, M.R.I. A. 
[A — to face page 574.] 
1 
3. 
Star. 
3. 
RA. 1890.0. 
Decl. 1890.0. 
5. 
P. 
Years. 
6. 
7. 
e. 
8. 
,-.orv. 
9. 
n. 
10. 
A. 
11. 
a. 
12. 
Computer. 
Mag. 
Components. 
Colours of 
Components. 
15. 
Spectrum. 
le. 
Hypothetical 
p = aFl. 
Observed parallax 
18. 
A. 
B. 
ao. 
brightness 
hi 
h' 
21. 
Remarks. 
1 
2 3062, .... 
0 0 30 
+ 57 49-4 
+ 102-943 
1835-508 
0-4472 
32 11 
39 9 
92 7 
1-270 
Doberck 
A, N., 2277. 
1 
+ 104-416 
1834-88 
0-4612 
32 11 
38 35 
92 7 
1-27 
Doberck, 
1877. 
6-9, 8 
Pale yeUo-w. 
II. Pec.' 
0-057 
- 0-002 
0-135 
Ast. Nach., 2156. 
1 
+ 105-64 
1836-60 
0-4151 
46 17 
47 37 
93 62' 
1-446 
0-065 
1 
+ 112-644 
1835-196 
0-50090 
29 58 
32 10 
97 31 
1-310 
Sobur, 
1867. 
0-056 
- 0-008 
0-124 
0-68 
A. N., 1636. 
+ 146-83 
1834-01 
0-57536 
38 35-9 
77 21-2 
42 10-3 
0-9982 
0-036 
- 
2 
0 11 0 
+ 35 52-2 
- 135-2 
1967-93 
0-506 
61 0 
16 36 
284 6 
0-63 
Glasenapp, 
1889. 
7-4, 8-1 
0-02 
+ 0-009 
0-073 
1-48 
3 
3 
Tj Cassiopeia, . . 
0 42 27 
+ 57 13-9 
+ 176-37 
+ 181 
1924-78 
1896-0 
0-77083 
68 30 
57 59 
50 48 
25 33 
245 54 
243 39 
10-68 
10-335 
Powell, 
1861. 
4, 7-6 
Yellow and 
purple. 
11. 
0-34 
0-323 
+ 0-154, Struve. 
+ 0-3743, 
0-33 
M.N.,R.A.S., vol. xxi.. 
3 
3 
" ■ • ■ 
+ 195-235 
+ 222-435 
1901-25 
1909-24 
0-6244 
0-5763 
48 18 
53 60 
33 20 
39 57 
229 27 
223 20 
8- 639 
9- 83 
Griiber, 
Dobeick, 
1877. 
0-256 
0-255 
Schweizer and 
Socoloff. 
- 0-469 
-0-338 
0-782 
0-806 
0-51 
p. 66. 
A. N., 2111. 
A. N., 2091. 
4 
O220 = 66Piscium, 
36 AndiomedsE, . 
0 48 50 
0 49 5 
+ 18 35-5 
+ 23 1-9 
- 136-2 
+ 349-1 
1901-7 
1798-80 
0-416 
0-G537 
16 6 
41 39 
103 42 
57 54 
167 48 
142 19 
0- 48 
1- 64 
Dobeixk^' 
5- 9, 7-0 
6- 2, 6-9 
Yellowish white 
bluish-white. 
Golden. 
I. 
II. Pec. 
0-018 
0-031 
- 0-008 
- 0-035 
0-020 
0-070 
9-77 
6-23 
A. N., 2052. 
p Eridani, . . . 
1 3.5 36 
- 56 45 
- 117-51 
- 123 
- 224-37 
1817-51 
1819-83 
1814-43 
0-378 
0-323 
0-4127 
44 40 
46 36 
26 5 
81 42 
290 40 
48 0 
327 15 
105 50 
329 52 
3- 82 
4- 25 
4-75 
Doberck, 
Downmg, 
1877. 
1860. 
6, 6 
0-16 
0-171 
0-128 
+ 0-145 
0-456 
A. N., 2148. 
M. N., X., 171. 
M. N., xliii., 264. 
- 302-37 
1823-55 
0-674 
38 31 
135 0 
240 0 
6-96 
0-154 
- 0-121 
0-359 
0-21 
M. N., xlviii.. No. 1. 
: 
2 22R. . . . 
2 7 0 
+ 46 59 
+ 88-73 
1906-03 
0-5311 
70 59 
84 49 
51 36 
0-98 
Gore, 
1889. 
6-7, 7-6 
White. 
II. 
0-049 
+ 0-075 
0-228 
1-17 
M. N., 1., No. 2. 
40 Eridani (B C), . 
14 'i^ Ononis, . . 
O 2 149, . . . 
4 10 13 
0 1 .54 
6 29 .34 
- 7 49-5 
+ 8 21 
+ 29 22 
- 139-0 
- 190-48 
- 85-9 
1863-88 
1959-0.5 
1915-05 
0-1362 
0-2465 
0-460 
76 20 
44 67 
31 6 
146 20 
99 35 
141 12 
354 23 
302 42 
347 18 
1-22 
0-55 
Goro' 
Gksenapp 
1887. 
9, 11 
6, 6-8 
6-5, 9-0 
"Sky-blue." 
Yellowish- 
white. 
[. (Pickering), 
I. a! Vogel. 
II. 
0-223 
0-037 
0-028 
0-166, Gill. 
0-323, Hall. 
+ 0-105 
+ 0-012 
+ 0-031 
0-781 
0-086 
0-069 
0- 0015 
4-09 
1- 07 
M. N., xlvi., No. 5. 
M. N., xlvH., No. 2. 
12 Lyncis (A B), . 
6 36 31 
+ 59 33 
- 485-8 
17160 
0-229 
46 3 
166 30 
93.36 
1-64 
Gore, 
1887. 
5-2, 6-1 
Yellowish. 
0-026 
- 0-001 
0-046 
14-01 
A. N., 2S02. 
Sirius, .... 
„ .... 
6 40 18 
- 16 34-0 
- 44 
- 49-399 
1889-4 
1843-275 
0-591 
0-6148 
58 37 
47 8-7 
46 27 
61 57-8 
136 39 
8-53 
Pritchard. 
Auwers. 
1, 10 
White and deep- 
yellow. 
I. 
0-684 
0-193, GyldSn. 
- 1-629 
3-788 
- 
- 
- 49-418 
1793-89 
0-6010 
0-43, Belopolsky 
and Wagner. 
0-370, Gill. 
- 
1893-182 
0-7515 
53 
10 12 
8-31 
Mann. 
0-616 
- 49-6 
1891-8 
0-58 
57 6 
42 24 
8-41 
Colbert. 
0-623 
0-407, Elkin. 
5-31 
t there is something peculiar about the spectri 
