Coronagraph - NASA Science
Coronagraph - NASA Science
Dec 21, 2022
nasa.gov
What's a coronagraph? (And what does it have to do with an eclipse?) A coronagraph is an instrument used to block the light of a star so that the planets around it can be more easily seen. It's basically an artificial eclipse – which is exactly where the idea came from! (The “corona” in coronagraph refers to the Sun’s outermost atmosphere, which is visible during a solar eclipse.) The first coronagraph was invented in 1930 by Bernard Lyot to recreate a total solar eclipse at will, and while the
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High-contrast demonstration of a vector vortex coronagraph with a segmented, off-axis aperture
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spiedigitallibrary.org
17K views · 215 reactions | Bye, Coronagraph!  NASA's next exoplanet imager recently made a cross-country trip from JPL in Southern California to NASA's Goddard Space Flight Center in Maryland. The Roman Coronagraph Instrument will help pave the way in the search for habitable worlds outside our solar system by testing new starlight-blocking tools. | NASA Jet Propulsion Laboratory | Facebook
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17K views · 215 reactions | Bye, Coronagraph!  NASA's next exo…
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148 reactions · 21 shares | The snowy speckles in this SOHO coronagraph movie are caused by energetic particles hitting the spacecraft's camera. The particles are being accelerated toward the spacecraft (and toward Earth) by shock waves in the emerging CME. They are a sign that it is a potent storm cloud with an Earth-directed component. This CME could reach Earth on May 13th, adding new power to the ongoing geomagnetic storm. | The Watchmen's Earth and Space connection | Facebook
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148 reactions · 21 shares | The snowy speckles in this SOHO cor…
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NASA's Roman Space Telescope Gets New Coronagraph to Spot Exoplanets
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