circumstellar disk

(′sər·kəm¦stel·ər ′disk)

(astronomy) A flattened cloud of gas or small particles that undergoes approximately circular motion about a star, and in which the material velocity is determined primarily by the balance of gravity and centrifugal force.

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	classical T Tauri star (astronomy)
	weak-line T Tauri star (astronomy)
	Eclipsing variable stars (stars, the galaxy)

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