Extending magnitude standards to faint stars with a sub-beam prism

Details Extending magnitude standards to faint stars with a sub-beam prism Extending magnitude standards to faint stars with a sub-beam prism

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984asph.conf..197i&link_type=abstract

In Royal Observatory Astron. Phot. 1984 p 197-202 (SEE N85-16102 07-35)

Astronomy and Astrophysics

Astronomy

Calibrating, Photographic Plates, Prisms, Stellar Magnitude, Extrapolation, Irises (Mechanical Apertures), Photometers, Schmidt Telescopes

Scientific paper

A sub-beam prism method to extrapolate a magnitude scale to faint stars on photographic plates taken with a Schmidt telescope was developed. A magnitude scale can be extrapolated by 4.5 mag with an accuracy within 0.1 mag. Magnitude difference between primary and secondary images giving identical magnitude parameters is approximated by a linear function of magnitude, in which two numerical constants are chosen for each individual plate. The design of the sub-beam prism and the derivation procedure of the constants are presented.

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