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Double Stars with Common Proper Motion

Published online by Cambridge University Press:  25 July 2018

Willem J. Luyten
Willem J. Luyten*
Affiliation:
Dept. of Astronomy, University of Minnesota; Minneapolis 14, U.S.A.

Extract

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The proper Motion Survey with the 48-in Schmidt telescope has now progressed far enough such that we may begin to make some meaningful statistical discussions of the results obtained. Altogether 135 regions have been blinked - one seventh of the total - and in particular all fifty plates covering the area of the North Polar Cap, north of declination +69 (1855) have been blinked and completely measured.

Type
Second Session
Information
International Astronomical Union Colloquium , Volume 5: Coordination of Observing Techniques of Visual Double Stars , April 1971 , pp. 49 - 51
Copyright
Copyright © 1971