Young, Charles A. (Charles Augustus), 1834-1908, Young, Anne Sewell, b. 1871., ed · Boston, New York [etc.] Ginn and Company · leaf 90
of the ecliptic remainspractically fixed among the stars, but the pole of the equatorhas moved many degrees since the earliest observations. Atpresent the Pole-star (Alpha Ursse Minoris) is about 1\° fromthe pole, while in the time of Hipparchus the distance wasfully 12°; during the next century it… … Fig. 25. § 123] PHYSICAL CAUSE OF PRECESSION. 77 track of the celestial pole among the stars. It passes pretty nearthe star Yega (Alpha Lyrae), on the opposite side of the circle fromthe present Pole-star; so that, about 12,000 years hence, Vega willbe the Pole-star, — a splendid one. Reckoning…
Astronomy · Constellations
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