Learn how to use Betelgeuse in a English sentence. Over 2 hand-picked examples.
Last August, astronomers, using the Hubble Space Telescope to observe Betelgeuse, found evidence that the star was ejecting so much material into space that it formed a dust cloud, which blocked all light coming from its surface.
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Stargazers have also noticed that Betelgeuse, Procyon, and Sirius make up an almost perfectly equilateral Winter Triangle.
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