Definitions
from the GNU version of the Collaborative International Dictionary of English.
- noun plural (Astron.) Groups of small shining spots on the surface of the sun which are brighter than the other parts of the photosphere. They are generally seen in the neighborhood of the dark spots, and are supposed to be elevated portions of the photosphere.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
facula .
Etymologies
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Examples
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Its surface was mottled with great ugly spots, leprous with the scaly markings called faculae and granulations.
Starchild Omnibus Pohl, Frederik & Williamson, Jack 1963
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It is also marked here and there by long streaks of light, called faculae, which look like foam flecks below a cataract.
Remarks Bill Nye 1873
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Because there are brighter or more luminous parts of the sun's disk, called faculae by Scheiner and Hevelius, which would seem to be volcanos in the sun, or, as Dr. Wilson calls them, "eructations of matter more luminous than that which covers the sun's surface."
The Botanic Garden A Poem in Two Parts. Part 1: the Economy of Vegetation Erasmus Darwin 1766
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Although at solar maxima there are more sunspots on the Sun's surface, their dimming effect is more than offset by the appearance of bright patches on the Sun's disc called faculae - Italian for "little torches".
WHAT REALLY HAPPENED 2009
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Although at solar maxima there are more sunspots on the Sun's surface, their dimming effect is more than offset by the appearance of bright patches on the Sun's disc called faculae -- Italian for "little torches '.
Climate Ark Climate Change & Global Warming RSS Newsfeed 2009
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The heavy line is the measured irradiance, the spikes up and down are the passage of faculae or sunspot groups across the solar disk.
October 28th, 2009 m_francis 2009
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Wang et al. 2005 is based on solar considerations alone, using a flux transport model to simulate the long-term evolution of the closed flux that generates bright faculae.
Archive 2009-10-01 EliRabett 2009
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Wang et al. 2005 is based on solar considerations alone, using a flux transport model to simulate the long-term evolution of the closed flux that generates bright faculae.
Critical Review of Robinson, Robinson, and Soon’s “Environmental Effects of Increased Atmospheric Carbon Dioxide” EliRabett 2009
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Clearly the faculae on the sun are very small compared with sunspots and any attempt to numerically model the sun in its entirety is unlikely to be successful.
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The sun is a very complicated object and although observations of faculae, sunspots, differential solar rotation, helmet streamers, coronal mass ejections, solar cycles, etc. have been made for many years, it is extremely difficult for us to understand these features because we do not have sufficient information e.g. local lateral boundary conditions to analytically describe or numerically model the individual objects such as a sunspot.
chained_bear commented on the word faculae
"... in astronomy, are certain bright and shining parts, which the modern astronomers have, by means of telescopes, observed upon or about the surface of the sun; they are but very seldom seen."
—Falconer's New Universal Dictionary of the Marine (1816), 143
October 11, 2008