Scientists sketch aged star system using over a century of observations
Astronomers have painted their best picture yet of an RV Tauri variable, a rare type of stellar binary where two stars - one approaching the end of its life - orbit within a sprawling disk of dust. Their 130-year dataset spans the widest range of light yet collected for one of these systems, from radio to X-rays.
via Shown's Blog - Feed https://ift.tt/38CJqAy
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