298 COMPARISON OF THE LIGHT OF THE SUN AND MOON. 
The following numbers represent the proportions of light emitted by various celes- 
tial objects. They are taken from the preceeding Memoir of this volume, and depend 
in part upon the experiments of Herschel and Seidel. 
Jupuorwroppestenr edo Po TM ur 
Mean Full Moon — 6430 ° Venus at greatest brilliancy 4.864 ` 
Tov. "e - m. — 0.9158, 
« 2 — 0.6210, 
: eem — 0.1200, 
« S S — 9.9890, 
«s ie — 9.6810, 
: eod — 9.6810, 
: civ — 9.5260. 
These, combined with the ratio of the light of the Sun and Moon, give the relations, 
Sunlight — 470 980 times the light of the mean Full Moon, 
S SEN 622 600 000 a S Venus at maximum brilliancy, 
$ = 3028 350 000 = " Jupiter at mean opposition, 
id = 5970500000 - = Sirius, 
« = 18924000 000 s s a Centauri, 
2 = 24946 500 000 M x a Lyre, 
se = 25586 500 000 = e Rigel, 
" = 52001 000 000 " x: Spica, 
eg = 52001 000 000 x: " « Aquile, 
74 303 500 000 « *  Fomalhaut. 
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