Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 395
sorbit. 366. Star-Drift. —Inseveral instances, groupsof stars have a commonproper motion entirely dif-ferent from that of thestars around and amongthem. Such groups proba-bly form connected sys-tems, in the motion of Fl§- 425-which all the stars are carried along together without anygreat change in… … ASTRONOMY. 3^9 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
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
