Moulton, Forest Ray, 1872-1952 · New York, The Macmillan company · leaf 425
esun interior to the photosphere is always invisible. Above the photosphere hes a sheet of gas, probably from500 to 1000 miles thick, which is called the reversing layerbecause, as will be seen (Art. 233), it produces a reversed, 378 AN INTRODUCTION TO ASTRONOMY [ch. xi, 227 or absorption,… … Fig. 141. — The Sun. Photographed by Fox with the Jfi-inch telescope of theYerkes Observatory. (color sphere). At the time of a total eclipse of the sun itis seen as a brilliant scarlet fringe whose outer surface seems CH. XI, 228] THE SUN 379 to be covered with leaping flames. There are often…
Astronomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
