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Instantaneous determination of a variable extinction coefficient in photoelectric photometry
Published online by Cambridge University Press: 12 April 2016
Abstract
Observational evidence was found that even in good photometric sites the extinction coefficient can display large variations during a night. The authors propose a method to determine instantaneous values of the extinction coefficient: it is based on the knowledge of the extra-atmosphere instrumental magnitude m0 for a reference star. An analytical procedure is proposed to determine a reliable value for m0 and results are very satisfactory.
- Type
- Session 4 Automatic Photoelectric Telescopes and Extinction
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- Copyright
- Copyright © C.J. Butler and I. Elliottt 1993