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RY Carinae: A Complex Star Group

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Caryn Johnson

Martha H. Liller

Harvard College Observatory, Cambridge, Massachusetts



RY Carinae is classified in the General Catalog of Variable Stars by Kukarkin et al. (1970) as Mira type with period 421.53 days, a brightest maximum of 9.8m visual and faintest minimum of < 15.0m visual. The notes to the catalog indicate that average maximum is 11.0m and average minimum 15.0m. There is also a remark to the effect that, since J.D. 2423600 the period has decreased to 419 days with considerable variation.


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