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penumbra
Parte de una mancha solar. Se trata de una gran tormenta solar magnética y la penumbra es el anillo más exterior de la tormenta compuesta de fibrillas oscuras.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Chemistry; Weather
- Category: Atmospheric chemistry
- Educational Institution: Sam Houston State University
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