Accession Number : AD0620963

Title :   MEASURING THE STARS. THE STELLAR INTERFEROMETER AT NARRABRI OBSERVATORY,

Corporate Author : SYDNEY UNIV (AUSTRALIA)

Personal Author(s) : Brown,R. Hanbury

Report Date : 1965

Pagination or Media Count : 9

Abstract : The stellar intensity interferometer at Narrabri Observatory is described and its advantages compared to former interferometers. The intensity interferometer is capable of measuring the angular sizes of stars much smaller, hotter, and further away than those measured by other systems. Its advantages are that there is no need for high mechanical precision either in constructing it or guiding it on a star; it does not seem significantly affected by atmospheric scintillation; and measurements are objective and independent of the observer's skill. Development, installation, and initial testing are discussed, and a short theoretical explanation is presented. (Author)

Descriptors :   (*STARS, MEASUREMENT), (*INTERFEROMETERS, ASTRONOMICAL OBSERVATORIES), (*ASTRONOMY, INTERFEROMETERS), OPTICAL INSTRUMENTS, AUSTRALIA

Distribution Statement : APPROVED FOR PUBLIC RELEASE