Spectroheliogram

• (n.) A photograph of the sun made by monochromatic light, usually of the calcium line (k), and showing the sun`s faculae and prominences.
Found on http://thinkexist.com/dictionary/meaning/spectroheliogram/

Spectroheliogram

Spec`tro·he'li·o·gram` noun [ Spectrum + heloi- + -gram .] (Astrophysics) A photograph of the sun made by monochromatic light, usually of the calcium line (k), and showing the sun's faculæ and prominences.
Found on http://www.encyclo.co.uk/webster/S/158

spectroheliogram

spectroheliogram 1. An image of the sun produced using a narrow wavelength band of the radiation it emits. 2. A photograph of the sun made with a spectroheliograph taken in a narrow wavelength band centered on a selected wavelength.
Found on http://www.wordinfo.info/words/index/info/view_unit/1993/9
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