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 41
enings ofJuly and August as it advances from A to B; and during the early evenings of September,October, and November from B to C and from C to D. But there are two other groups in the sky, through practically the same hours, to whichI would now call your attention. Altair and its two companions… … y ^ FOUR POSITIONS OF ALTAIR distant from Altair about twice as far as the distance between Corvus and Spica (nowsouthwest as Altair rises) or thirty degrees. As Altair moves toward position B, Vegaalso will be found so much higher in the sky that, as we continue to face south, we shallhave to…
Astronomy
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