i 62 
researches in stellar photometry. 
Table ioi.—Comparison Stars for Z Cassiopeia (in Order of Right Ascension). 
Star. 
Coordinates from Variable. 
Light 
Scale, 
Steps. 
R. A. 
Dec. 
n 
s 
rt 
h 
— 276 
-329 
4- 3 
37-0 
b 
— 208 
— 24.8 
4- 200 
44.1 
} 
-188 
— 22.4 
—420 
.... 
g 
-182 
-21.7 
- 3 " 
27-5 
X 
-117 
- 13-9 
4 - 97 
17.1 
l 
- 92 
— 11.0 
-188 
r 
- 89 
—10.6 
-182 
31-5 
e 
- 88 
-10.5 
-137 
23 - I 
k 
- 78 
- 9-3 
-239 
21.6 
s 
- 47 
- 5-6 
- 8 
6.0 
0 
- 23 
- 2.7 
- 83 
9 9 
n 
- 17 
— 2.0 
- 9 
8.0 
t 
+ 3 
4 - 0.4 
4 - 40 
1.0 
u 
+ 4 
4 - 0.5 
4 - 22 
i -5 
w 
+ 17 
4 - 2.0 
- 17 
0.0 
9 
4 - 28 
4 - 3-3 
4 - 57 
11.0 
d 
+ 40 
4 - 4-8 
4-121 
36.4 
P 
4 - 40 
4 - 4 8 
+ 37 
10.0 
a 
4-139 
4-16.6 
-448 
.... 
Magnitude. 
Measured. 
H. 
P. 
10.75 
10.64 
9-79 
9.68 
11.97 
11.86 
I 3-38 
13.27 
12.25 
12.14 
12.99 
12.88 
13.96 
13-85 
13.96 
13-85 
13-72 
13.61 
10.94 
10.83 
13.64 
13-53 
8.32 
8.21 
From Curve. 
H. 
P. 
n -45 
11 -34 
14-32 
14.21 
14.88 
T 4 - 77 
14.82 
14.71 
15.00 
14.89 
Table 102.—8518 Z Cassiopeia. Photometer Measures of Comparison Stars. 
1904 September 5. 
6 -INCH. 
Good, a little dull. 
Sidereal 
Zen. 
Scale Readings. 
Mean Scale Readings. 
C. 
Magnitude. 
Time. 
otcir. 
Mean of 3. 
Mean of 6. 
H. 
P. 
h m 
O 
20 39 
3 i 
Dai 
13.3 12.8 13.4 
13 • x 7 
12.95 
0.63 
7-94 
7-83 
E 
14.3 13.7 15.0 
14 33 
14-33 
0.84 
8.15 
8.04 
Aai 
10.0 9.0 9.9 
9-63 
9-55 
0.24 
7-55 
7-44 
a 
17.0 15.8 15.9 
16.23 
16.62 
1.17 
8.48 
8-37 
h 
37-5 39-9 38-2 
38-53 
37-82 
3-65 
10.96 
10.85 
30 
b 
24.5 25.1 25.0 
24.87 
25.22 
2- 15 
9.46 
9-35 
d 
39-5 39 9 39-8 
39-73 
39-78 
3.82 
11.13 
11.02 
d 
40.0 39.7 39.8 
39-83 
b 
24.9 25.9 25.9 
25-57 
h 
37 1 37-3 369 
37.10 
a 
17.2 17.0 16.8 
17.00 
Aai 
9.2 9.3 9.9 
9-47 
E 
14.3 14.8 13.9 
14 33 
20 59 
28 
Dai 
12.2 12.9 13.1 
12.73 
