from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Variant of coronagraph.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A telescope, fitted with an attachment that blocks out direct rays from the sun, used to study and photograph the corona of the sun
  • n. The attachment used in such a telescope

from The Century Dictionary and Cyclopedia

  • n. An instrument, first suggested and tried by Huggins for photographing the sun's corona during an eclipse, or in full sunlight, if possible.


Sorry, no etymologies found.


  • In the second case, support the instrumentation for TMT and GMT for a GPI-like project; put a well-corrected subaperture/vector vortex coronograph system on Keck, etc.

    ScienceBlogs Channel : Life Science

  • Once the twinkle was removed, the light from the star itself was blocked using the team's coronograph, an instrument that selectively masks out the star.

    Zee News : India National

  • Sounds like a near-IR SNAP with a coronograph - a near-IR wide field "New Worlds Observer"?

    ScienceBlogs Channel : Life Science

  • Hubble's advanced camera for surveys was equipped with a coronograph, a disk-shaped device that blocks all of a star's brightest light.

    Top Stories - Google News

  • Apparently a coronograph was used, which masked one star, so that pictures could be taken of planets which, in other conditions, would be invisible to the eye / lens.


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