'spectroheliogram' can also refer to...


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A photograph of the Sun taken in the light of a strong Fraunhofer line (or part of the line). Most commonly, the Hα and calcium K lines are chosen for spectroheliograms, which then show chromospheric features. A spectroheliogram is produced by a spectroheliograph; if filters are used to select the wavelength, the result is termed a filtergram.

Subjects: Astronomy and Astrophysics.

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