18 
RESEARCHES IN STELLAR PHOTOMETRY. 
Table io.—103 T Andromeda. Mean Magnitudes. 
6-INCH. 
! 
Star. 
October 15. 
October 27. 
October 30. 
Mean. 
Mag. 
J Mag. 
Mag. 
J Mag. 
Mag. 
d Mag. 
Mag. H* 
Mag. P. 
d Mag. 
A . 
7 -65 
7-44 
797 
+ 0.04 
-0.03 
— O.OI 
7 63 
7-49 
7-95 
4-0.02 
4 - 0.02 
-0.03 
7-55 
7-49 
8.02 
— 0.06 
4-0.02 
4-0.04 
7.61 
7-47 
7.98 
7.69 
7-55 
8.06 
±0.04 
±0.02 
±0.03 
B . 
Mean. 
7.69 
7-77 
±0.03 
b . 
8.88 
9.22 
9.04 
10.43 
10.23 
10.33 
+ 0.07 
— 0. 11 
— 0.18 
+ 0.18 
+ O.OI 
+ 0.01 
8.85 
9-34 
9.27 
10.08 
10.24 
10.11 
4-0.04 
4-0.01 
4-0.05 
— 0.17 
4-0.02 
— 0.21 
8.71 
9.42 
9 36 
10. 25 
10.19 
10.51 
— 0.10 
— 0.09 
4-0.14 
0.00 
— 0.03 
-fo.19 
8.81 
9-33 
9.22 
10.25 
10.22 
10.32 
8.89 
9.41 
9-30 
10.33 
10.30 
10.40 
±0.07 
±0.07 
±0.12 
±0.12 
±0.02 
±0.14 
c . 
d . 
e . 
/ . 
s . 
Mean . 
9.69 
9-77 
±0.09 
12-INCH. 
Star. 
September 11. 
October 31. 
November 2. 
Mean. 
Mag. 
d Mag. 
Mag. J Mag. 
Mag. 
d Mag. 
Mag. H. 
Mag. P. 
d Mag. 
b . 
8.87 
9.42 
9.06 
+ 0.15 
— 0.09 
— 0.06 
8.62 
9-55 
9.19 
— 0.10 
4-0.04 
4-0.07 
8.67 
9-55 
9.14 
-0.05 
4-0.04 
4-0.02 
8.72 
9 - 5 i 
9.12 
8.80 
9-59 
9.20 
±0.10 
±0.06 
±0.05 
c . 
d . 
Mpa n 
9.12 
9.20 
±0.07 
c . 
10.16 
11.84 
10.04 
11.77 
13.16 
— 0.04 
— O.OI 
— on 
+ 0.11 
+ 0.04 
10.22 
11.72 
10.33 
11.47 
13.21 
4-0.02 
-0.13 
4-0.18 
— 0.19 
+ 0.09 
10. 22 
11.99 
10.07 
H -75 
T 3 - 0 ± 
4-0.02 
4-0.14 
— 0.08 
4-0.09 
— 0.12 
10. 20 
11.85 
10. 15 
11.66 
13.12 
10.28 
H -93 
10.23 
11.74 
13.20 
±0.03 
±0.09 
±0.12 
±0.13 
±0.08 
k . 
1 . 
t . 
x . 
Mean.. 
11.40 
11.48 
±0.09 
1 
40-INCH. 
Star. 
January 14. 
January 28. 
February 25. 
Mean. 
Mag. 
d Mag. 
Mag. 
d Mag. 
Mag. 
d Mag. 
Mag. H. 
Mag. P. 
d Mag. 
k . 
11.81 
11.85 
12.98 
— 0.02 
— 0.01 
+ 0.03 
11.92 
11.83 
12.88 
-fo.09 
-0.03 
— 0.07 
n -75 
11.89 
13.00 
— 0.08 
4-0.03 
4-0.05 
11.83 
11.86 
12.95 
11.91 
11.94 
1303 
±0.06 
±0.02 
±0.05 
t . 
x . 
Mean. 
12.21 
12.29 
±0.04 
u . 
13-35 
1384 
4-0.13 
4-0.16 
13-14 
13.40 
14.20 
13-94 
— 0.08 
— 0.28 
— 0.20 
4-0.14 
13.16 
13-79 
14.60 
14.08 
— 0.06 
4-o. 11 
4-0.20 
0.00 
13.22 
13.68 
14.40 
14.08 
13-30 
I 3-76 
14.48 
14.16 
±0.09 
±0.18 
±0.20 
±0.09 
w . 
I y . 
z . 
14.22 
4-0.14 
Mean. 
13-85 
13-93 
±0. 14 
