Spectroheliogram Spec`tro*he"li*o*gram`, n. [Spectrum + heloi- + -gram.] (Astrophysics) A photograph of the sun made by monochromatic light, usually of the calcium line (k), and showing the sun's facul[ae] and prominences. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • spectroheliogram — ☆ spectroheliogram [spek΄trə hē′lē ə gram΄ ] n. a monochromatic image of the sun s chromosphere produced by a spectroheliograph …   English World dictionary

  • spectroheliogram — noun Date: 1905 a photograph of the sun that is made by monochromatic light and shows the sun s faculae and prominences …   New Collegiate Dictionary

  • spectroheliogram — /spek troh hee lee euh gram /, n. a photograph of the sun made with a spectroheliograph. [1905 10; SPECTRO + HELIOGRAM] * * * …   Universalium

  • spectroheliogram — noun a photograph taken using a spectroheliograph …   Wiktionary

  • spectroheliogram — spec·tro·heliogram …   English syllables

  • spectroheliogram — spec•tro•he•li•o•gram [[t]ˌspɛk troʊˈhi li əˌgræm[/t]] n. opt See under spectroheliograph • Etymology: 1905–10 …   From formal English to slang

  • spectroheliogram — /spɛktroʊˈhiliəˌgræm/ (say spektroh heeleeuh.gram) noun a photograph of the sun made with a spectroheliograph …   Australian English dictionary

  • spectroheliogram — |spek(ˌ)trō+ noun Etymology: spectro + heli + gram : a photograph of the sun made by monochromatic light usually of the hydrogen alpha line in the red or the calcium K line in the violet and showing the sun s faculae and prominences * * * /spek… …   Useful english dictionary

  • Imaging spectroscopy — (also spectral imaging or chemical imaging)is similar to color photography, but each pixel acquires many bands of light intensity data from the spectrum, instead of just the three bands of the RGB color model. More precisely, it is the… …   Wikipedia

  • flocculus — /flok yeuh leuhs/, n., pl. flocculi / luy /. 1. floccule. 2. Astron. one of the bright or dark patches on the sun s surface, visible in a spectroheliogram. [1790 1800; < NL; see FLOCCULE] * * * …   Universalium

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