xo8 * Don ulloa’s Obfervations 
Five or fix feconds after the immerfion we began to 
obferve round the Moon a very brilliant circle of light, 
which feemed to have a rapid circular motion fomething 
fimilar to that of a rocket turning about its center. This 
light became livelier and more dazzling in proportion as 
the center of the Moon approached to that of the Sun, 
and about the middle of the eclipfe it was of the breadth 
of about a fixth of the Moon’s diameter. Out of this lu- 
minous circle there iffued forth rays of light, which 
reached to the diftance of a diameter of the Moon, fome- 
times more, fometimes lefs, which made me think that 
they were parts of a weaker light which were reflected 
in an atmofphere more fubtle than that in which the 
ring was formed. When the centers of the two 
planets began to feparate, the diminution began, and 
took 
5 ou 6 fecondes apres que l’immerfion eut ete faite on commenea a decouvrir 
autour de la Lune un cercle de lumiere tres brillant qui fembloit avoir un 
mouvdment rapide circulaire, femblable a celui d’un artifice embrafe mis en jeu 
fur fon centre. Cette lumiere devint plus vive et plus eblouifiante a mefure que 
le centre de la Lune aprochoit de celui du Soleil ; et dans le temps que Peclipfe 
fut a fon milieu elle etoit large de deux doigs du diametre de la Lune, ou comme 
h fixieme partie du dit diametre. De ce cercle lumineux partoient des rayons 
de lumiere de toute fa circomference, perceptibles jufqu’ a la difiance d’un dia-* 
metre de la Lune ; tantot plus, tantot moins, ce qui me fit penfer que cetoit des 
parties de lumiere plus foibles qui s’imprimoient dans un atmofphere plus fubtil 
que celui ou etoit forme l’anneau. Lorfqueles centres des deux planetes com- 
mencerent a s’ecarter, la diminution commenca et fe fit graduellement dans \$ 
meme 
