coronagraph

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English

Etymology

From corona +‎ -graph.

Noun

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Wikipedia

coronagraph (plural coronagraphs)

  1. (astronomy) A telescope that has an attachment which blocks out the direct light from the sun or other star, allowing examination of the corona and the detection of exoplanets.
    • 2015, Huw Morgan, “An atlas of coronal electron density at 5Rs I: Data processing and calibration”, in The Astrophysical Journal Supplement Series, volume 219:
      The crosscalibration between LASCO C2 and the STEREO coronagraphs allows, for the first time, the potential use of multi-spacecraft coronagraph data for tomography and for CME analysis..

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