Recent Examples of coronagraph from the Web
Lately another controversial element has been added to the mission, a coronagraph, which could be used to block the light from a star so that faint planets near them can be discerned.
The telescope would be designed to reduce scattered light and have a coronagraph and starshade to allow direct imaging of Earth-sized exoplanets.
But a coronagraph can’t see as much as a telescope observing an eclipse can.
To see the protoplanetary ring, astronomers use a tool called a coronagraph to block the light of the star.
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First Known Use of coronagraph
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Britannica.com: Encyclopedia article about coronagraph
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