Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York, H. Holt and Company · leaf 82
) of the focal image la. This image is viewedby the field lens F of the eye-piece as a real object, and the shadedpencil between F and E shows the course of these rays after de-viation by F. If there were no eye-lens E an eye properly placedbeyond F would sec an image at / a. The eye-lens E… … Fig. 22.—section op a positive eye ptkcbl figure of the refracting telescope, every point of the object producesa pencil similar to 0 /, and the whole surfaces of the lenses Fand E are covered with rays. All of these pencils passing throughthe pupil go to make up the retinal image. Tliis image is…
Astronomy
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