facula
Example Sentences
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He considers it indeed "highly probable that the preparatory sign of a new spot is always a small, bright patch of facula."
From A Popular History of Astronomy During the Nineteenth Century Fourth Edition by Agnes M. (Agnes Mary) Clerke
Stellar contamination refers to the influence of the star's own features, such as dark spots and bright faculae, on the measurements of the exoplanet's atmosphere.
From Science Daily ● Sep. 25, 2023
"In addition to the contamination from stellar spots and faculae, we saw a stellar flare, an unpredictable event during which the star looks brighter for several minutes or hours," said Lim.
From Science Daily ● Sep. 25, 2023
Even during a prolonged minimum, they claim, an extensive network of very small faculae on the sun’s hot surface remains to keep the energy output above a certain threshold level.
From Science Magazine ● May 26, 2011
So if the small faculae start to fade, too, that would have an even stronger effect on the total energy production of the sun.
From Science Magazine ● May 26, 2011
The faculae, or bright areas, which are seen all over the sun’s surface, but specially in the neighbourhood of spots, and most distinctly near the sun’s edge, were discovered by Galileo.
From History of Astronomy by George Forbes
