Proctor, Richard A. (Richard Anthony), 1837-1888 · New York, R. Worthington · leaf 139
are constant and the propor-tion of e e to m e is constant; therefore the direction e m or e m isalso constant. Hence, every meteor of the system must appear to pro-ceed from the point s on the celestial sphere. In reality every meteor of the system travels parallel to M m, andtherefore is… … Fig. i.—Illustrating the existence ofmeteoric iadiant points. METEORIC ASTRONOMY. 129 from a determinate point of the star-sphere enclosing theearth on all sides. Similar remarks apply to the November shower. Thus a test of the interplanetary nature of meteoricsystems is at once afforded, and a…
Astronomy
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