Questions tagged [coronograph]

Questions about telescope attachments designed to block the direct light from a star.

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Why is the Nancy Grace Roman Space Telescope (WFIRST) coronagraph considered “beyond-state-of-the-art”?

After about 01:30 in the NASA video NASA's Nancy Grace Roman Space Telescope: Broadening Our Cosmic Horizons the narrator says: To deepen its study of exoplanets ...
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Is it possible to see stars that are gravitationally lensed by the sun from the ground?

Roughly 100 years ago, Eddington confirmed Einstein’s general relativity theory by photographing stars behind the obscured Sun during a total eclipse. A coronograph is a device that mimics what ...