Accession Number : AD0662912

Title :   THE ASTROMETRIC PROGRAM AT YERKES OBSERVATORY.

Descriptive Note : Final rept. 1 Oct 65-31 Jan 67,

Corporate Author : CHICAGO UNIV ILL

Personal Author(s) : VAN Altena,William F.

Report Date : 14 DEC 1967

Pagination or Media Count : 5

Abstract : Modernization of the 40-inch refractor of the Yerkes Observatory along with its darkroom facilities are briefly described. Note is made of the fact that an automatic photoelectric guiding camera will soon be put into operation on the 40-inch refractor. Progress reports are given on the parallax program of low-luminosity stars for which some 600 exposures have been obtained. Progress on proper motions in the clusters NGC 2420, NGC 7062, Hyades and Pleiades are also given. (Author)

Descriptors :   (*TELESCOPES, ASTRONOMICAL OBSERVATORIES), (*STARS, MOTION), ASTRONOMY, PHOTOGRAPHY

Subject Categories : Astronomy

Distribution Statement : APPROVED FOR PUBLIC RELEASE