MEASURING THE STARS. THE STELLAR INTERFEROMETER AT NARRABRI OBSERVATORY,

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)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1965
Accession Number
AD0620963

Entities

People

  • R. Hanbury Brown

Organizations

  • University of Sydney

Tags

DTIC Thesaurus Topics

  • Intensity
  • Interferometers
  • Measurement
  • Measuring Instruments
  • Observatories
  • Precision
  • Scintillation

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Systems Analysis and Design
  • Thermal Physics or Thermal Science.