ABSORPTION OF LIGHT IN GASEOUS MEDIA. 
417 
Table X. 
•422/x. 
•457/a. 
•491/a. 
•556/x. 
• 014/x. 
•660/a. 
(i-) 
Quality of Sky Badiation. 
' Comparison of 
' Calculated Values with 
Mount Wilson 
Observations, 
October 17, 1906. 
C = 43°. 
= 23°. 
f = 79°. 
Solar 
intensity, 
i = 43°. 
3430 
4700 
4960 
4630 
4080 
3600 
Zenith 
sky, 
i = 43°. 
m 
116 
109 
102 
97 
92 
83 
80 
78 
1 
u 
43 
42 
26 
26 
26 
18 
18 
18 
Skyjsun, 
C = 43°. 
361 X 10-* 
339 
318 
21S X 10-* 
206 
196 
167 X 10-* 
161 
157 
95-0 X 10-* 
92-5 
90-5 
6S-5%10-* 
63-5 
63-5 
50 X 10-* 
50 
50 
Oljserved 
skyjsun. 
655 
521 
294 
188 
106 
100 
Calculated 
skyjsun. 
4 /V.V 
678 
636 
m 
412 
392 
S3f 
321 
314 
190 
185 
181 
127 
127 
127 
100 
100 
100 1 
(ii.) 
Quality of Sky Radiation. 
Comparison of 
Calculated Values with 
Mount Wilson 
Observations. 
C = 58°. 
</> = 17°. 
f = 146°. 
Solar 
intensity, 
C = 58°. 
3050 
4210 
4570 
4360 
3850 
1 
3420 
Zenith 
sky, 
i = 58°. 
99 • 0 
91-0 
82-5 
81-0 
77-5 
73 5 
65 
62 
60 
37 
36 
35 
20-5 
20-5 
20-5 
13-5 
13-5 
13-5 
Skyjsun, 
C = 58°. 
SdG X 10-^ 
295 
271 
193 X 10-* 
184 
175 
lf2 X 10-* 
136 
131 
85-0 X 10-* 
82-5 
80 0 
53-3 X10-* 
53-3 
53-3 
39-5x10-* 
39-5 
39-5 
Observed 
skyjsun. 
574 
425 
317 
191 
124 
104 
Calculated 
skt/jsun. 
750 
680 
625 
U5 
424 
403 
327 
314 
302 
196 
190 
185 
123 
123 
123 
91 
91 i 
91 
(iii.) 
Quality of Sky Radiation. 
Comparison of 
Calculated Values of 
Zenith Sky with Mean 
Absolute Intensity of 
Sky Radiation. 
Mean, = 50°. 
Zenith 
sky. 
112-6 
104-5 
97-0 
92-0 
88-0 
83-6 
73-5 
71-5 
69-0 
lfO-5 
40-0 
39-5 
22-2 
22-2 
15-7 
15-7 
15-7 
deserved 
mean 
sky. 
1194 
986 
701 
395 
231 
174 
Calculated 
zenith 
sky. 
1192 
1109 
1030 
.97.5 
933 
885 
780 
758 
731 
* 
424 
418 
235 
235 
235 
166 
166 
166 
VOL, CCXTT.-A. 
Quality of Sky Itadiation at Mount Wilson, Octoler 17, 1906. 
3 H 
