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Evaluation of an Eclipsing Variable Minimum with an HP Desk Calculator and Plotter

Published online by Cambridge University Press:  25 April 2016

Z. Kvíz
Z. Kvíz*
Affiliation:
Broken Hill Division, University of New South Wales
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Extract

A program has been designed for Hewlett-Packard 9100 A Calculator connected by a 9102A Buffer to a 9101 A Extended Memory, a 9120 A Printer and 9125 Plotter. The program evaluates and plots one-night photoelectric measurements in 3 colours of a short period eclipsing variable and detects the exact time of the minimum. The program may take a maximum of 24 observations either of a comparison star or of the variable in each colour but it could easily be modified for a maximum of 36 observations in two colours or seventy two observations in one colour. The usual alternating succession of the type CVCVC… is supposed but up to three successive measurements both of the comparison star and of the variable is possible, e.g. CVCCCVCVCVVVCVC…

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 2 , Issue 6 , October 1975 , pp. 351 - 352
Copyright
Copyright © Astronomical Society of Australia 1975

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References

Kwee, K.K., and van Woerden, H., Bull. Astron. Instit. Neth., 12, 327 (1956).Google Scholar