spectroheliography
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spectroheliography — noun see spectroheliograph … New Collegiate Dictionary
spectroheliograph — noun Etymology: International Scientific Vocabulary Date: 1892 an apparatus for making spectroheliograms • spectroheliography noun … New Collegiate Dictionary
photography — Synonyms and related words: X ray photography, abstract art, aerial photography, aerophotography, albertype, art, art form, artist, arts and crafts, arts of design, astrophotography, book printing, calligraphy, candid photography, cave art,… … Moby Thesaurus
spectroheliograph — /spɛktroʊˈhiliəˌgræf/ (say spektroh heeleeuh.graf), / graf/ (say grahf) noun an apparatus for making photographs of the sun with monochromatic light, to show the details of the sun s surface and surroundings as they would appear if only that one… …
