Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 471
s the photographic apparatuswith it, and the light from the star makes aline, while the astronomer wants a point. Hemust therefore devise a machine that willcounteract the movement of the earth, and sokeep the light steadily in the same place onthe plate. Elaborate clockwork must turnthe lens… … THE STARS GROUPED AROUND THE POLE STAR APPEARIN THE PHOTOGRAPH AS ARCS OF CIRCLES. OTHER STARS APPEAR IN THE PHOTOGRAPHAS NEARLY STRAIGHT LINES. An astronomer at the great Yerkes Observa-tory at Williams Bay, Wisconsin, says that,Many of the most important results ofastronomy . . . have been…
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