coronagraph
noun
co·ro·na·graph
kə-ˈrō-nə-ˌgraf 
variants
or less commonly coronograph
plural coronagraphs also coronographs
: a telescope for observation of a star's corona
The American spacecraft was to carry the solar coronagraph, the only instrument on the mission capable of imaging the sun's polar regions …—
M. Mitchell Waldrop
M. Mitchell WaldropUsing an instrument called a coronagraph, the astronomers can block a star's light, to catch the dim glow of dark matter that may surround it.—Jonathan Weiner
Jonathan WeinerExamples of coronagraph in a Sentence
Recent Examples on the Web
That creates a lot of stray light, so the coronagraphs are enlarged to ensure bright sunlight cannot enter their telescopes.
—Jamie Carter, Forbes, 3 Dec. 2024
Two satellites fly in formation to form an external coronagraph in space, with one satellite eclipsing the sun to allow the second to study the solar corona, the scorching and dynamic region of the sun's atmosphere that is typically obscured by the bright light of the sun's disk.
—Jamie Carter, Forbes, 3 Dec. 2024
On 4 November, NASA plans to launch the Coronal Diagnostic Experiment (CODEX), an instrument that will create eclipses on demand with a Sun-blocking device called a coronagraph.
—Byhannah Richter, science.org, 31 Oct. 2024
In the days before the comet became visible above the horizon, it was lost in the sun's glare but not to LASCO, which imaged it very close to the sun using its coronagraph disk to occult the sun's disk.
—Jamie Carter, Forbes, 16 Oct. 2024
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Jamie Carter, Forbes, 3 Dec. 2024
Two satellites fly in formation to form an external coronagraph in space, with one satellite eclipsing the sun to allow the second to study the solar corona, the scorching and dynamic region of the sun's atmosphere that is typically obscured by the bright light of the sun's disk.
—Jamie Carter, Forbes, 3 Dec. 2024
On 4 November, NASA plans to launch the Coronal Diagnostic Experiment (CODEX), an instrument that will create eclipses on demand with a Sun-blocking device called a coronagraph.
—Byhannah Richter, science.org, 31 Oct. 2024
In the days before the comet became visible above the horizon, it was lost in the sun's glare but not to LASCO, which imaged it very close to the sun using its coronagraph disk to occult the sun's disk.
—Jamie Carter, Forbes, 16 Oct. 2024
See all Example Sentences for coronagraph
Dictionary Entries Near coronagraph
Cite this Entry
“Coronagraph.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coronagraph. Accessed 22 Dec. 2024.
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