Definitions for faculaˈfæk yə lə; -ˌli

This page provides all possible meanings and translations of the word facula

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  1. facula(noun)

    a bright spot on a planet

  2. facula(noun)

    a large bright spot on the sun's photosphere occurring most frequently in the vicinity of sunspots

WiktionaryRate this definition:(0.00 / 0 votes)

  1. facula(Noun)

    A bright spot or patch between sunspots

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  1. Facula

    A facula, Latin for "little torch", is literally a "bright spot." The term has several common technical uses. It is used in planetary nomenclature for naming certain surface features of planets and moons, and is also a type of surface phenomenon on the Sun. In addition, a bright region in the projected field of a light source is sometimes referred to as a facula, and photographers often use the term to describe bright, typically circular features in photographs that correspond to light sources or bright reflections in a defocused image. Solar faculae are bright spots that form in the canyons between solar granules, short-lived convection cells several thousand kilometers across that constantly form and dissipate over timescales of several minutes. Faculae are produced by concentrations of magnetic field lines. Strong concentrations of faculae appear in solar active regions, with or without sunspots. The faculae and the sunspots contribute noticeably to variations in the "solar constant". The chromospheric counterpart of a facular region is called a plage.


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