Democratic Sentinel, Volume 14, Number 42, Rensselaer, Jasper County, 14 November 1890 — About the Sun’s Corona. [ARTICLE]

About the Sun’s Corona.

The observations made by Professor Sehaeberle. of the Lick Observatory, in connection with the eclipse of last December have led him to propound an entirely new theory of the solar corona. According to his observations the corona is caused by light emitted and reflected from streams of matter ejected from the sun by forces which in general act along lines normal to the surface. These forces are most active near the center of each sun spot zone, and owing to the change of the position of the observer with reference to the plane of the sun’s equator the perspective overlapping and interlacing of the two sets of streamers at these zones cause the observed apparent change in the type of the corona. Having had this idea suggested to him in the course of his investigations, Professor Sehaeberle has hit upon a mode of mechanically demonstrating it Having stuck a number of needles in a ball to represent the streams of matter, he jjlaqed the model Jn a beam of parallel ray? and allowed its shadow to fall upon a> screen,, the. result being that an indefinite variety of forms similar to the jCoronal structure can be reproduced by simply fbvglvihg the model- Whether ‘tne’forms that are stien according as the observer is above or or in the plane of the sun’s 1 equator agree with those that should be seen has yet to be proved; but if there is such agreement it will go far in the direction of confirming this novel view of the sun’s corona.