RESEARCHES IN STELLAR PHOTOMETRY. 
I 70 
Table 105.— 8518 Z Cassiopeia. Visual Observations op the Variable. —Continued. 
Date. 
U 
QJ 
U 
3 
No. 
Month 
and Day. 
Hour 
C. S. T. 
Julian 
Day 
G. M. T. 
CJ 
3 
u 
C 
8. 
< 
56 
1900 
Aug. 6 
9 
24100004- 
5238.63 
150 
6 
57 
14 
8 
5246.58 
150 
6 
58 
28 
8 
5260.58 
200 
6 
59 
Sept. 6 
11 
5269.71 
237 
40 
60 
13 
12 
5276.75 
237 
40 
61 
Oct. 4 
8 
529758 
237 
40 
62 
16 
9 
5309-63 
460 
40 
63 
24 
12 
5317-75 
237 
40 
64 
1901 
Feb. 9 
9 
5425 63 
150 
6 
65 
Dec. 21 
8 
5740.58 
350 
40 
66 
1902 
Jan. 13 
5763-6 
24 
67 
Oct. 1 
9 
6024.63 
237 
40 
68 
3 i 
10 
6054.67 
237 
40 
69 
Nov. 7 
15 
6061.88 
237 
40 
70 
1903 
Oct. 10 
6398 
67 
12 
7 i 
1904 
Aug. 4 
9 
6697.63 
150 
6 
72 
29 
8 
6722.56 
150 
6 
73 
Sept. 5 
6729 
40 
6 
74 
11 
8 
673558 
67 
12 
75 
Oct. 1 
10 
6755-67 
40 
6 
76 
8 
11 
6762.71 
237 
40 
77 
27 
6781 
. . . 
6 
78 
30 
6784 
24 
79 
Nov. 2 
6787 
• • . 
12 
80 
6 
6791 
237 
40 
81 
14 
6799 
24 
82 
1905 
Jan. 3 
8 
6849.56 
237 
40 
83 
3 
8 
6849.56 
237 
40 
84 
24 
7 
6870.54 
237 
40 
85 
28 
7 
6874.54 
237 
40 
86 
Feb. 9 
8 
6886.56 
275 
12 
87 
25 
7 
6902.52 
237 
40 
88 
Apr. 4 
16 
6940.92 
237 
40 
89 
11 
16 
6947.92 
237 
40 
90 
30 
i 5 
6966.88 
237 
40 
9 i 
May 22 
14 
6988.83 
450 
40 
92 
J une 4 
14 
7001.83 
450 
40 
93 
13 
14 
7010.83 
237 
40 
94 
27 
14 
7024.84 
237 
40 
95 
July 23 
I I 
7050.71 
237 
40 
96 
30 
12 
7057•75 
237 
40 
97 
Aug. 6 
9 
7064.63 
237 
40 
98 
19 
9 
7077-63 
237 
40 
99 
22 
11 
7080.71 
237 
40 
100 
28 
9 
7086.63 
150 
6 
101 
Sept. 17 
8 
7106.58 
150 
6 
102 
Oct. 20 
8 
7 I 39-56 
80 
12 
103 
Nov. 21 
6 
7 I 7 I -50 
150 
6 
Comparisons. 
g3-4T, v limit. 
g3v, ve, V2k . 
e4v, kiv, limit v . 
eiv, V3X . 
eiv, V4X . 
X3v, V4 q . 
kSv, V4n, V3P, V3q, xs~6v. 
photometer. 
v not seen, limit e. 
ve, V2k, V4-3 x. . . 
ksv, X 3 V , v 5-6o. 
g2V, vi—2e . 
V3g, v6e± . 
photometer. 
v not seen, limit 2 < k . 
g 3 v < v 2e . 
g4v, eiv, V2k . 
j photometer, v not seen, 
( limit e . 
photometer. 
j photometer, v not seen, 
f limit e . 
x6-8v, k8v, v8p, v6q . 
v not seen, limit k . 
photographs. 
v not seen, limit 2<&. 
no— 1 v, 113-4.?. 
photographs, vn . 
Reduction, Steps. 
24.0. 
24.5, 23.1, 23.6. 
19.1, 20.6. 
22.1, 20.1. 
22.1, 21.1. 
14.1, 15.0. 
(13.6, 1: 
(14.0, 
12.0, 13.0. .) 
11.6.) 
23.1, 23.6, 21.6. 
16.6, 14.1, 18.7. 
25 - 5 . 24.6. 
30.5, 291. 
24 - 5 , 25.1. 
23.5, 22.1, 23.6. 
10.1, 13.6, 18.0, 16.0 
7 - 5 , 9 - 5 - 
m8v, p6v, u not seen. 0.0, 4.0 
photometer. 
n6-8s, nq, n2p, x6n . 
0311, nq, nip, n3~4S ... 
j n glimpsed ? X3n±, limit | 
t 4 - 5 <k . s . 
mo-12 n, 0111, qn, nip . 
x8 »±, n20, n6s . 
q2n, pin, no, n4s . 
n$v, sv, viu .. 
V3n, viq, V2p, vio . 
V2~3q, V2~3n, V40, x6v . 
V4q, V5 n, X3V . 
photometer. 
V40, V3q, x6v . 
X3V, V4 q . 
vs q, vs0 . 
vy-8x, V4~5e, vg, h8-iov . . . 
V10-12X, vse, V2g, h8v . 
hiv, d.2v, v8g±. 
b6v, v6h, v6d . 
vs d, v6h, b6v . 
div, hiv . 
3.0, 6.0, 2.5. 
11.o, 12.0, 12.0, 10.9 
*3.5, 10.5, 13.9, 11.1 
15.0, 13.0, 14.1. 
13.9, 14.0, 11.1. 
H.i, 150. 
13.6, 16.0, 14.9. 
24.6, 27.6, 27.5, 28.0 
28±, 28.1,29.5, 29i 
36.0, 34.4, 35. 
38.1, 42.0, 42.4. 
38.1, 43.0, 38.1- 
32 . 1 , 36.0. 
Means. 
Seeing. 
t. 
Steps. 
Mag. 
24- 
0 
12. 
30 
fair 
141 
23 
7 
12. 
33 
good 
149 
i9- 
8 
12. 
80 
good 
163 
21. 
1 
12. 
65 
fair 
172 
21. 
6 
12 
59 
moon 
179 
14. 
5 
13- 
38 
fair 
200 
12. 
8 
13 ■ 
59 
good 
212 
• 
13- 
64 
poor 
220 
<23 
< 
12 
4 
fair 
22. 
7 
12 
46 
moon 
151 
16. 
5 
13 
15 
.... 
174 
25 - 
0 
12 
20 
poor 
435 
30. 
0 
11 
62 
fair 
465 
• 
11 
49 
fair 
472 
<20 
< 
12 
8 
.... 
24 
8 
12 
22 
fair 
124 
23- 
i 
12 
40 
good 
149 
<23 
< 
12 
4 
good 
12 
95 
good 
162 
<23 
< 
12 
4 
good 
14. 
4 
13 
38 
good 
189 
<21 
< 
12 
6 
fine 
. . . 
. 
13 
6 
v • • 
211 
<19 
< 
12 
9 
fair 
... 
8 
5 
14 
05 
fair 
218 
8 
14 
1 
226 
2 
0 
14 
78 
fair \ 
276 
. . 
15 
33 
good) 
< 6 
< 
14 
3 
fair 
< 6 
< 
14 
3 
good 
< 6 
< 
14 
3 
fair 
* * * 1 
< 6 
< 
14 
3 
good 
< 6 
< 
14 
3 
good 
< 6 
< 
14 
3 
fair 
4 
0 
14 
64 
fair 
393 
11 
5 
13 
•70 
fair 
4i5 
12 
2 
13 
63 
fair 
428 
14 
0 
13 
•43 
good 
437 
13 
■35 
good 
45i 
13 
4 
13 
■50 
fair 
477 
14 
■5 
13 
•38 
good 
484 
14 
.8 
13 
■35 
good 
491 
27 
•3 
11 
•95 
good 
12 
28 
.8 
11 
■78 
good 
15 
35 
. 2 
11 
. 00 
fair 
21 
40 
.8 
IO 
•3i 
fair 
4i 
39 
•3 
10 
•5i 
good 
74 
34 
.0 
11 
. 12 
good 
106 
J Mag. 
— 0.07 
— 0.16 
4-0.05 
-0.25 
— 0.42 
— 0.07 
— 0.12 
-0.25 
— 0.06 
4-0.21 
-1 - 25 ± 
— 0.48 
— 0.21 
4 -o. 13 
— o. 10 
4-0.23 
4-0.18 
4-0.20 
4-0.09 
— 0.06 
0.00 
— 0.40 
— 0.02 
0.00 
4 - 0.55 
4 -2.10 
4-2.42 
4-2.65 
4 - 1-34 
-fi.15 
-fo.32 
-0.55 
-0.77 
-0.65 
