Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 228
esembling the cloud-shadows whichradiate from the sun before a thunder-shower; but theedges of these rifts are frequently curved, showing them ASTRONOMY. 205 to be something else than real shadows. Sometimes thereare narrow bright streamers, as long as the rifts, or longer.These are often inclined,… … Fig. 225. tendency to accumulations above the middle latitudes, orspot-zones; so that, speaking roughly, the corona shows adisposition to assume the form of a quadrilateral or four-rayed star, though in almost every individual case this formis greatly modified by abnormal streamers at some point…
Astronomy
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