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spectroheliogram

spectroheliogram is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

1.A photograph of the sun made by monochromatic light, usually of the calcium line (k), and showing the sun's faculæ and prominences.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

Related questions

What does "spectroheliogram" mean?

Reverse-dictionary questions

Definition-first questions whose answer is spectroheliogram.

What is a photograph of the sun made by monochromatic light, usually of the calcium line (k), and showing the sun's faculæ and prominences called?

Sources

Definitions: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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