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Ry Sgr: Can the time of the Next Deep minimum Be Predicted?

Published online by Cambridge University Press:  12 April 2016

J W Menzies
J W Menzies*
Affiliation:
SAAO P O Box 9 Observatory 7935South Africa

Abstract

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The L magnitude of the RCB star, RY Sgr, varies with an amplitud of up to 2.0 mag on a time scale of about 1500 days. The last two deep optical minima have occurred approximately one year after a maximum in L. This behaviour may be characteristic of the star and may allow the time of onset of the next deep minimum to be predicted, in which case it will occur in the second half of 1986.

Type
IV Cool Hydrogen Deficient Stars
Information
International Astronomical Union Colloquium , Volume 87: Hydrogen Deficient Stars and Related Objects , 1985 , pp. 207 - 210
Copyright
Copyright © Reidel 1986

References

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