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[spek-troh-hee-lee-uh-gram] /ˌspɛk troʊˈhi li əˌgræm/
a photograph of the sun made with a spectroheliograph.


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  • Spectroheliograph

    [spek-troh-hee-lee-uh-graf, -grahf] /ˌspɛk troʊˈhi li əˌgræf, -ˌgrɑf/ noun 1. an apparatus for making photographs of the sun with a monochromatic light to show the details of the sun’s surface and surroundings as they would appear if the sun emitted only that light. spectroheliograph /ˌspɛktrəʊˈhiːlɪəˌɡrɑːf; -ˌɡræf/ noun 1. an instrument used to obtain an image of […]

  • Spectrohelioscope

    [spek-troh-hee-lee-uh-skohp] /ˌspɛk troʊˈhi li əˌskoʊp/ noun 1. a spectroheliograph. 2. a similar instrument, used for visual instead of photographic observations. spectrohelioscope /ˌspɛktrəʊˈhiːlɪəʊˌskəʊp/ noun 1. an instrument, similar to the spectroheliograph, used for observing solar radiation at one particular wavelength

  • Spectrology

    noun 1. the study of ghosts, phantoms, or apparitions.

  • Spectrometer

    [spek-trom-i-ter] /spɛkˈtrɒm ɪ tər/ noun, Optics. 1. an optical device for measuring wavelengths, deviation of refracted rays, and angles between faces of a prism, especially an instrument (prism spectrometer) consisting of a slit through which light passes, a collimator, a prism that deviates the light, and a telescope through which the deviated light is viewed […]

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