140 
RESEARCHES IN STELLAR PHOTOMETRY. 
Table 86.—7269 SX Cygni. Visual Observations of the Variable. 
Date. 
rt 
u 
No. 
Month 
and Day. 
Hour 
C. S. T. 
Julian 
Day 
G. M. T. 
0 
O 
Ih 
<U 
a 
< 
1 
1899 
Oct. 12 
8 
2410000+ 
4940.58 
80 
6 
2 
17 
6 
4945•50 
80 
6 
3 
20 
*7 
4948.52 
80 
6 
4 
23 
8 
495 I -56 
150 
6 
5 
28 
7 
4956.52 
150 
6 
6 
Nov. 3 
8 
4962.58 
150 
6 
7 
8 
6 
4967.50 
150 
6 
8 
15 
6 
4974-50 
150 
6 
9 
20 
6 
4979 50 
150 
6 
10 
25 
6 
4984.50 
150 
6 
11 
Dec. 4 
7 
4993-54 
150 
6 
12 
19 
6 
5008.50 
150 
6 
13 
27 
6 
5016,50 
150 
6 
14 
1900 
Jan. 2 
6 
5022.50 
150 
6 
15 
22 
6 
5042■50 
150 
6 
16 
24 
*7 
/ 
5044-52 
200 
6 
17 
31 
7 
5051-52 
200 
6 
18 
Mar. 2 
13 
5081.79 
275 
12 
19 
6 
17 
5085.96 
150 
6 
20 
15 
17 
5094-95 
350 
40 
21 
22 
16 
5101.92 
350 
40 
22 
Apr. 4 
16 
5114.90 
275 
12 
23 
6 
16 
5116.92 
350 
40 
24 
May 1 
14 
5141-85 
275 
12 
25 
2 
15 
5142.88 
350 
40 
26 
11 
14 
5151-83 
460 
40 
27 
28 
14 
5168.83 
275 
12 
28 
29 
12 
5169.75 
237 
40 
29 
June 13 
12 
5184.75 
460 
40 
30 
23 
10 
5 I 94-67 
200 
6 
3 i 
July 16 
9 
521763 
150 
6 
32 
Aug. 6 
9 
5238.63 
150 
6 
33 
8 
9 
5240.63 
150 
6 
34 
13 
9 
5245-63 
150 
6 
35 
18 
9 
525063 
150 
6 
3 d 
28 
9 
5260.63 
150 
6 
37 
Sept. 4 
8 
5267-58 
40 
6 
38 
15 
7 
5278.54 
150 
6 
39 
21 
9 
5284.63 
40 
6 
40 
Oct. 10 
7 
5303-54 
150 
6 
4 i 
26 
7 
5319-54 
150 
6 
42 
Nov. 15 
6 
5339-50 
150 
6 
43 
29 
6 
5353•50 
150 
6 
44 
Dec. 11 
6 
5365 - 50 
150 
6 
45 
29 
7 
5383•50 
150 
6 
46 
1901 
Oct. 31 
S 
5689-58 { 
80 
12 
3 
47 
Dec. 21 
L 3 
( 
574°-79 
275 
350 
12 
40 
48 
1902 
Mar. 28 
15 
5837.88 
237 
40 
49 
July 10 
9 
594 I -63 
80 
12 
50 
Oct. 7 
10 
6030.67 
80 
12 
Comparisons. 
( vib, vie, V4d, 04-5V... 
- vik, V21, h8-ioa, 04-51/ 
( vic, V2b, bp,{, f2d, b2g. . 
06-71/, vib, vie, V2m. . . 
CO—IV, VI- 2 b . 
T3-4 d, vb . 
biv, vT,d, limit n . 
b2v, vyl . 
b2v, 1/3 d. 
b^v, vid . 
641/, vo-id . 
651/, vo-i d . 
b^v, vi d . 
dI- 2 V . 
1(4-51’, vio . 
d$v, vo, 112-3 p . 
v not seen, limit d . 
pT,v, vin, limit n . 
v not seen, limit 4 < 0. . . . 
n6v, limit v . 
v not seen, n not seen.... 
(1/ is 1 to i£m < w> v near{ 
(limit .) 
V 2 W, VI t, till, XIV, X 2 W. . . . 
vuiv, ti-2v, v glimpsed. . . . 
X4.V, wv, v$y . 
v suspected, t and y not held 
*41;, vivo, v$y . 
X3-4V, vo-iw, 1/4-5 y. .' - 
n6-8v, xi-2V, V2w, limit vu. 
n\v, vx, 1/311/, wioz, limit z. 
nxv, v$X', 1/5 t, 1/511/. 
ni-2v, limit 1 <i>. 
st,v, vp, vyi . 
S2v, limit v . 
syv, limit v . 
vis, 1-4-5 p, v8n, d8v . 
div, v$s . 
byv, vi-2d .. . 
bzv, v6d . 
051/, vib, vie . 
photometer. 
a$v, v$b . 
051/, vc, vib . 
C 2 ~T,V, b 2 V, V4d . 
64-51/, vd, v6s . 
64-5T, do—iv, 7'5~6 s . 
d6v, vs, V4p . 
Reduction, Steps. 
37-2, 39-o, 35-3, 38.5 
39-5. 38.5, 38.5- 
39.0, 38.2,. 
36.5, 37-2, 39 0, 34.5 
37-0, 37-7. 
36.2 . 
34-3. 
34-3. 
34-3. 
32.3 . 
31-8 . 
3T.8. 
32.3 . 
34 - 8 , 
35 - 3 , 
34 - 2 , 
34 - 2 , 
32-2, 
32-2, 
3 i- 2 , 
3 1 - 2 , 
26.8, 30.1 
26.3, 29.1, 24.9. 
19.4, 19.4... 
<25.1, <22. 
12.4. 
12.0, 12.5, 12.5. 
9 - 0 . 9-0 . 
9.5, 10.0, 10.0. . 
9.5, ir.o, 10.0. 
10.0, 10.5, 11.5- 
11.4, 12.0, 12.0. 
14 - 4 . 13 - 5 , 130. 
15.4, 16.5, 16.5, 15.0 
21.6, 22.4, 21.4. 
25.6, 26.9, 26.4,23.3 
30.3, 27.6. 
33 - 2 , 33-8 . 
34 - 2 , 37-3 . 
38.0, 37.2, 39.0. 
) 
vi—2a . 
va . 
Iimit6<«,2 <11,1 < vo,2 <x) 
VI- 2 C . 
d 5 - 6 v, 7 > 3 «. 
v not seen, limit 1 <«, 
vv ± .. 
38.0, 39.2. 
38.0, 38.0, 37.2- 
35 - 5 , 34 - 2 , 35-3 - 
31 - 7 , 3 i- 3 . 30.6- 
31.7, 30.8, 29.9. . .. 
25.3, 24.6, 26.4- 
44-5 
43-0 
25 8, 21.4 
Means. 
Steps. 
38.: 
37 
37 
35 
34 
34 
34 
32.2 
32 
3 i 
3 i 
29 
28 
26.8 
< 3 i -3 
19.4 
<23 
12.4 
<18.4 
12.3 
9.0 
9.8 
<n -5 
10.2 
10.7 
11.8 
13.6 
15-9 
16.9 
21.8 
22.6 
21.6 
25-8 
29.0 
33-5 
35-2 
38.1 
38*6 
37-7 
35 o 
31.2 
30.8 
25.2 
43 S 
39-5 
23.6 
< 17-4 
18.4 
Mag. 
9.41 
9-52 
9-53 
9.80 
9.90 
9.98 
9.98 
10.26 
10.28 
10.35 
10.31 
10.60 
10.77 
11.00 
<10.4 
11.98 
<n-5 
12.89 
<12.1 
13 1 ± 
12.90 
13-31 
1323 
< 130 
1 3 - 1 7 
13.11 
12.98 
12-75 
12.47 
12.31 
11.68 
n-57 
11 7 =t 
11 • 13 
10.70 
10.06 
9-85 
9-43 
8.89 
9-37 
9-50 
9.86 
10.39 
10-45 
11.20 
8.66 
9.24 
n -43 
<12.3 
12.1 ± 
Seeing. 
t. 
A Mag. 
moon 
0 
— 0.22 
moon 
5 
— 0.18 
good 
8 
— 0.24 
good 
11 
0.00 
good 
16 
+ 0.03 
fair 
22 
0.00 
fair 
27 
— 0.06 
good 
34 
+ 0.10 
fair 
39 
— 0.04 
fair 
44 
+ 0.02 
good 
53 
— 0.20 
fair 
68 
— 0.22 
good 
76 
— 0.26 
good 
82 
— 0.22 
low 
102 
.... 
poor 
104 
— 0.04 
low 
. . . 
good 
141 
— 0.11 
fair 
146 
.... 
poor 
155 
— 0.04 
good 
162 
-0.32 
good 
175 
— 0.01 
poor 
177 
— 0.07 
poor 
202 
.... 
fair 
203 
+ 0.03 
fair 
212 
+ 0.06 
good 
229 
+ 0.14 
good 
230 
-0.05 
fair 
245 
-0.13 
good 
255 
— 0.12 
good 
277 
- 0-34 
moon 
29S 
+ 0.04 
moon 
300 
+ 0.23 
good 
305 
— 0. 10 
good 
310 
- 0-37 
good 
320 
— 0.28 
moon 
327 
+ 0.05 
good 
338 
■+ 0. 11 
good 
363 
+ 0.30 
good 
379 
+ 0.29 
good 
399 
+ 0.36 
good 
4 
+ 0.69 
good 
16 
+ 0.60 
fair 
34 
+ 0-95 
.... 
340 
-0.56 
moon 
391 
— 0.16 
good 
80 
+ 0.23 
good 
.... 
good 
272 
0 00 
