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coronagraph

   Also found in: Encyclopedia, Wikipedia 0.07 sec.
co·ro·na·graph also co·ro·no·graph  (k-rn-grf)
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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Solar-B doesn't have a coronagraph to artificially mimic solar eclipses, leaving that to SOHO and STEREO.
Combining adaptive optics with coronagraphs, devices that blot out the bright light of a parent star, will further hasten the discovery, Jaywardhana adds.
To view these wispy inflows at the sun's periphery, Sheeley and Wang used a coronagraph, a device that blocks the bright light from the sun's visible surface.
 
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