CHAPTER XIII.—Y CASSIOPELE. 
181 
Table 113.—8629 Y Cassiopeia. Mean Magnitudes op Comparison Stars. 
6-INCH. 
Star. 
C . 
F' . 
G . 
Mean 
A . 
B . 
I . 
m . 
^ . 
Mean 
October 6. 
October 15. 
Mag. 
J Mag. 
Mag. 
J Mag. 
7 • 2 3 
6.94 
7-43 
— 0.06 
+ 0.06 
0.00 
7.29 
6.78 
7-53 
+ 1 
000 
*1 0 
000 
7.81 
8-37 
9.82 
10.09 
+ 0.04 
+ 0.02 
-0.05 
+ 0.07 
7.82 
8-39 
9.90 
10.06 
10.08 
+ 0.05 
+ 0.04 
+ 0.03 
+ 0.04 
+ 0.10 
October 27. 
Mean. 
Mag. 
A Mag. 
Mag. H. 
Mag. P. 
A Mag. 
7-34 
+ 0.05 
7.29 
7.02 
±0.04 
6.91 
+ 0.03 
6.88 
6.61 
±0.06 
7-34 
— 0.09 
7-43 
7. 16 
±0.06 
7.20 
6-93 
±0.05 
7.69 
— 0.08 
7-77 
7-50 
±0.06 
8.28 
— 0.07 
8-35 
8.08 
±0.04 
9.88 
+ 0.01 
9.87 
9.60 
±0.03 
9.92 
— 0. 10 
10.02 
9-75 
±0.07 
9.88 
— 0.10 
9.98 
9.71 
±0.10 
9.00 
00 
04 
±0.06 
12 -INCH. 
Star. 
September 2. 
November 2. 
November 3. 
Mag. 
A Mag. 
Mag. 
JMag. 
Mag. 
A Mag. 
A . 
7.66 
8.28 
9.84 
10.07 
+ 0.06 
+ 0.03 
-0.05 
— 0.04 
7.66 
8.29 
9.87 
10 03 
+ 0.06 
+ 0.04 
— 0.02 
— 0.08 
7-49 
8.17 
9-97 
10.22 
— 0.11 
+ 0.08 
+ 0.08 
+ 0.11 
B . 
1 . 
m . 
Mean. 
b . 
10.49 
10.73 
ii -33 
+ 0.03 
+ 0.02 
— 0.10 
10.50 
10.65 
n -57 
10.12 
+ 0.04 
— 0.06 
+ 0.14 
+ 0.02 
10.40 
10.74 
11.40 
10.08 
— 0.06 
+ 0.03 
-0.03 
— 0.02 
c . 
d . 
s . 
Mean . . 
Mean. 
Mag. H. 
Mag. P. 
A Mag. 
7.60 
8.25 
9.89 
10.11 
7-33 
7-97 
9.62 
9.84 
±0.08 
±0.05 
±0.05 
±0.08 
8.96 
8.69 
±0.06 
10.46 
10.71 
n -43 
10.10 
10.19 
10.44 
11.16 
9-83 
±0.04 
±0.04 
±0.09 
±0.02 
10.68 
10.41 
±0.05 
40-INCH. 
Star. 
b.... 
c ... 
d. .. 
Mean 
/... 
a ■ . . 
g... . 
December 26. 
January 7. 
July 12. 
January 28. 
Mean. 
Mag. 
A Mag. 
Mag. 
A Mag. 
Mag. 
A Mag. 
Mag. 
A Mag 
Mag. H. 
Mag. P. 
A Mag. 
10.17 
10.84 
n -59 
+ 0.05 
+ 0.09 
— 0.14 
10.08 
10-75 
11.77 
— 0.04 
0.00 
+ 0.04 
10.06 
10.64 
11.90 
— 0.02 
— 0.11 
+ 0.17 
10.15 
10.78 
11.67 
+ 0.03 
+ 0.03 
— 0.06 
10.12 
10.75 
11 73 
9-85 
10.48 
11.46 
±0.04 
±0.06 
±0.10 
10.87 
10.60 
±0.07 
12.11 
13.60 
— 0.02 
+ 0.07 
12.21 
13.18 
+ 0.08 
- 0-35 
12.08 
13-94 
12.83 
-0.05 
+ 0-39 
- 0-34 
12.12 
13-39 
12.15 
— 0.01 
— 0.14 
- 0-34 
12.13 
13-53 
12.5 ± 
11.86 
13.26 
12. 2 ± 
±0.04 
±0.24 
±0.14 
Mean 
