A beginner's star-book; an easy guide to the stars and to the astronomical uses of the opera-glass, the field-glass and the telescope (1912)
Murphy, Edgar Gardner, 1869-1913 · New York, London, G.P. Putnam's sons · leaf 80
W W N S Fig. 6. Orientation of the Suns Image. At left, as seen with naked eye; at centre, as seen in astronomical telescope: at readers right, as seen when projected on a screen.
Astronomy
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