co·ro·na·graph also co·ro·no·graph (k -r  n-gr f )n. A telescope or an attachment for a telescope equipped with a disk that blacks out most of the sun, used to photograph the sun's corona. |
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coronagraph |
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Combining adaptive optics with coronagraphs, devices that blot out the bright light of a parent star, will further hasten the discovery, Jaywardhana adds. With adaptive optics systems and coronagraphs under development for several new telescopes, researchers have the capability to image planets, says Schneider. The next coronagraphs planned solely by NASA will not orbit at all, but will rise aboard sounding rockets and long-duration balloons as part of a project called Max '91, to be conducted in 1992. |
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