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Absolute Magnitudes from Trigonometric and Statistical Parallaxes

Published online by Cambridge University Press:  07 February 2017

P. Van De Kamp
P. Van De Kamp*
Affiliation:
Sproul Observatory, Swarthmore College, Swarthmore, Pa., U.S.A.

Abstract

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The attainable accuracy of photographic trigonometric parallaxes may be improved by the use of modern measuring engines, larger number of exposures, facilitated by increased speed of emulsions, more refined knowledge of reduction to absolute parallax. Systematic errors remain an obstacle both in trigonometric and statistical parallaxes.

With an attainable goal of ±0″.002 for the probable error of a parallax it appears difficult to obtain absolute magnitudes with a probable error less than 0.2 mag. for stars beyond 20 pc.

Type
Part I: Absolute Magnitudes from Trigonometric and Statistical Parallaxes
Information
Symposium - International Astronomical Union , Volume 54: Problems of Calibration of Absolute Magnitudes and Temperature of Stars , 1973 , pp. 3 - 10
Copyright
Copyright © Reidel 1973 

References

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