coronagraph

coronagraph

English

Etymology

Etymology tree
Italian coronabor.
English corona
Proto-Indo-European *gerbʰ-
Proto-Hellenic *grə́pʰō
Ancient Greek γράφω (gráphō)
Ancient Greek -γρᾰ́φος (-grắphos)der.
English -graph
English coronagraph

    From corona + -graph.

    Noun

    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[1], 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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