Accession Number : AD0691730

Title :   INSTRUMENTATION FOR A STUDY OF RANDOM ASTRONOMICAL REFRACTION.

Descriptive Note : Memorandum rept.,

Corporate Author : BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD

Personal Author(s) : Frey,William M.

Report Date : MAY 1969

Pagination or Media Count : 25

Abstract : The report presents a description of the instrumentation system developed for the acquisition of data for a study of short period variations of astronomical refraction. The optical system used for the stellar observations, the comparator for the measurement of the stellar images and the meteorological instrumentation for the determination of the atmospheric parameters are discussed in detail. (Author)

Descriptors :   (*STARS, OPTICAL IMAGES), (*OPTICAL IMAGES, REFRACTION), PHOTOGRAPHIC IMAGES, TELESCOPES, STEREOSCOPES, CAMERAS, METEOROLOGICAL INSTRUMENTS, DETECTORS, WIND, HUMIDITY, PROBES, RADIOSONDES, DEW POINT, BAROMETRIC PRESSURE, PHOTOGRAPHY

Subject Categories : Astronomy
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE