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bn:00206648n
Noun Concept
SYL
No term available
EN
The spectroheliograph is an instrument used in astronomy which captures a photographic image of the Sun at a single wavelength of light, a monochromatic image. Wikipedia
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IS A
EN
solar telescope
EN
spectrogram
DESCRIBED BY SOURCE
EN
Armenian Soviet Encyclopedia
DISCOVERER OR INVENTOR
George Ellery Hale
Henri-Alexandre Deslandres

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