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Recent Examples of coronagraph from the Web
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To see the protoplanetary ring, astronomers use a tool called a coronagraph to block the light of the star.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coronagraph.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of coronagraph
1885
Learn More about coronagraph
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Britannica.com: Encyclopedia article about coronagraph
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