Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 272
ing this mapupside-down let him find the constellations Draco, Ursa minor,Cepheu?, Cygnus, and Lyra. About 3000 years ago the pole was near a in Draco,At the present time the pole is near a in Ursa minor,About 2000 years hence the pole will be very near to a in Ursa minor, 4000 • near y in Cephevs,… … Fig. 156.—The Seasons on the Earth. The effects of the motion of the pole of the heavens on our sea-sons may be studied in the figure. The figure represents the Earth infour positions during its annual revolution. Its axis inclines to theright in each of these positions. In Chapter VIII it was said…
Astronomy
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