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 Clerke, Agnes M. (Agnes Mary)
"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
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
What’s more, detailed observations from orbiting solar telescopes have shown that the small faculae pump out more energy per unit surface area than the larger ones already known to disappear along with the sunspots.
From Science Magazine ● May 26, 2011
But the absence of other signs of magnetic activity, such as bright patches of very hot gas known as faculae more than compensates for this effect.
From Science Magazine ● May 26, 2011
He thought that these slow changes were connected with "the same emanations which render the appearance of spots and faculae periodical on the solar disk."
From Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 by Ross, Thomasina
