Abstract
The L magnitude of the RCB star, RY Sgr, varies with an amplitude 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.
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© 1986 D. Reidel Publishing Company
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Menzies, J.W. (1986). RY Sgr: Can the Time of the Next Deep Minimum be Predicted?. In: Hunger, K., Schönberner, D., Rao, N.K. (eds) Hydrogen Deficient Stars and Related Objects. Astrophysics and Space Science Library, vol 128. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4744-3_23
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DOI: https://doi.org/10.1007/978-94-009-4744-3_23
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