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Lessons from Very Long-Term, Very High-Precision Photoelectric Photometry

Published online by Cambridge University Press:  12 April 2016

G.W. Lockwood ,
B.A. Skiff  and
D.T. Thompson
G.W. Lockwood
Affiliation:
Lowell Observatory, Flagstaff, AZ 86001, U.S.A.
B.A. Skiff
Affiliation:
Lowell Observatory, Flagstaff, AZ 86001, U.S.A.
D.T. Thompson
Affiliation:
Lowell Observatory, Flagstaff, AZ 86001, U.S.A.

Abstract

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Traditional photoelectric techniques can achieve millimagnitude precision if a few simple rules are scrupulously followed. We illustrate the practical limits of differential photometry obtained with a dedicated telescope and photometer. Using a highly homogeneous set of measurements of bright F, G, and K solar analog stars, we present the distribution of observational noise and intrinsic stellar variability over a typical observing season and over the entire 8-year program. Finally, we list Strömgren uvby standards which we found to vary slightly.

Type
Session 2 High Precision Photometry
Information
International Astronomical Union Colloquium , Volume 136: Stellar Photometry – Current Techniques and Future Developments , 1993 , pp. 99 - 105
Copyright
Copyright © C.J. Butler and I. Elliottt 1993

References

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