单词	coronagraph
释义	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 Using 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 Example Sentences Recent Examples on the Web The instruments use a coronagraph to block out the starlight that would obscure the planet’s view otherwise. Richard Tribou, Orlando Sentinel, 1 Sep. 2022 There were, of course, some unexpected blips — like the discovery of scattered light impacting the telescope’s coronagraph instrument. Christine Condon, Baltimore Sun, 12 July 2022 Unlike a coronagraph, a star shade separates the two before the light enters the telescope. Chris Wright, Wired, 4 Jan. 2022 Webb’s coronagraph will block a star’s light, revealing its orbiting planets. Ethan Siegel, Forbes, 7 June 2021 Present plans call for WFIRST to fly with a high-performance coronagraph, an instrument capable of blocking a star’s light so that faint accompanying planets can be directly imaged. Lee Billings, Scientific American, 24 Aug. 2016 The coronagraph includes a disk to block out most of the light to look at what is going on in the sun’s outer atmosphere. Kenneth Chang, New York Times, 10 Feb. 2020 New technology will enable the coronagraph to block multiple stars at the same time, needed to hunt for exoplanets in star systems that, unlike our own, have two stars or more. Umar Farooq, Science | AAAS, 4 Mar. 2020 But like other premier telescopes, DAG will also have a coronagraph, an instrument that masks bright stars to remove their glare so that dim planets orbiting them can be imaged directly. Umar Farooq, Science | AAAS, 4 Mar. 2020 See More Word History Etymology corona + -graph First Known Use 1884, in the meaning defined above
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