Astronomy in a nutshell, the chief facts and principles explained in popular language for the general reader and for schools (1912)
Serviss, Garrett Putman, 1851-1929, Rouben Mamoulian Collection (Library of Congress) DLC · New York, London, G.P. Putnam's sons · leaf 35
o the points of thecompass is called azimuth. Together theseare known as co-ordinates. In order tosystematise this method of measuring thelocation of a star, the astronomer uses ima-ginary circles drawn on the celestial sphere.The horizon and the meridian are two ofthese circles. In addition to… … e. zroa Altitude and Azimuth. C is the place of the observer. N C S, a north-and-south line drawn in the plane of the horizon. E C W, an east-and-west line in the plane of the horizon. N E S W, the circle of the horizon. Z, the observers zenith. N Z S, vertically above N C S, the meridian. EZW, the…
Astronomy
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