Hnvtvjrnpti-'d at fh^l [Kenuood Ohservntory, U.S.A. 



A QUIESCENT PROMINENCE ON THE SUN. 



These Prominenrcs floal like red clouds hich above the solar surlace and chanae iheii" shapes slowly. 



ftvjt'j'jrnptifd ar th'-'] [h'eniroorl Ohservatoi-y, t'..s.A. 



AN ERUPTIVE PROMINENCE ON THE SUN. 



As indicated by their name. Eruptive Prominences are subject to changes and movements of the most violent nature. 

 The one shown above rose to a height of over seventy thousand miles. 



