The heliometer principle and some modern applications

Details The heliometer principle and some modern applications The heliometer principle and some modern applications

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.110..183g&link_type=abstract

(Deutsche Forschungsgemeinschaft, Universitaet Bamberg, Universitaet Erlangen-Nuernberg, and Victoria University of Manchester,

Astronomy and Astrophysics

Astrophysics

3

Astrometry, Calibrating, Heliometers, Astrography, Astronomical Photography, Diameters, Radial Velocity, Spectrographs

Scientific paper

The heliometer principle, an autocalibration technique based on the double-image method for the measurement of angular distances and diameters of celestial bodies is discussed. Some historical notes about Bouguer's minimum-distance heliometer built in 1748, Dollond's heliometer head built in 1755, and the large Fraunhofer's heliometer used by Bessel in 1829 are presented. The basic principle has applications for the geometrical and photometrical autocalibration of panoramic detectors, especially the photographic plate or film, and for the determination of absolute radial velocities with slitless field spectrographs.

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