The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, Potter, Ainsworth, & Co. · leaf 396
ASTRONOMY. 369 proper motion of about ten seconds per century towardsthe east. Proctor has shown that five out of the sevenstars which form the Great Dipper have a common proper … Fig. 426. motion, as shown in Fig. 427 (see also Fig. 420). He pro-poses for this phenomenon the name of Star-Drift. n ^
Astronomy
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