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Related to faculae: Facular
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Memphis Facula (bottom right) on Jupiter's moon Ganymede, taken by
Voyager 2


n. pl. fac·u·lae (-lē′)
Any of various large bright spots or veined patches on the surface of a planet or other solar system body, or on the sun's photosphere.

[Latin, small torch, diminutive of fax, fac-, torch.]
References in periodicals archive ?
Specifically, the contrast between diffuse bright regions called faculae and the quiet solar background increases as the mix of heavy elements is increased.
The spots, forming a bright area called Cerealia Facula at Occator's center and a complex of secondary spots, collectively called Vinalia Faculae, on its eastern floor, appear to be deposits of carbonate-rich salts--residue from briny flows that gurgled up from a fluid reservoir (perhaps a global ocean) deep in the asteroid's interior.
To view faculae and granulation safely through a telescope, you will need a filter that will dim the Sun's light by a factor of about a million.
Each proof will be discussed relative to the liquid metallic hydrogen (LMH) model [36, 39, 47, 48] wherein condensed hydrogen, pressurized in the solar interior, assumes a graphite-like lattice on the photosphere [39,40,45,48], a more metallic nature in sunspots and faculae [40,45,52], a diffuse presence in a somewhat cool corona [57,58,60], and a solid character in the core [50].
Its activity manifests itself as dark sunspots and bright faculae on its visible surface, as well as violent mass ejections and the acceleration of high-energy particles resulting from the release of magnetic energy in its outer atmosphere.
AR1589 N14[degrees]/266[degrees] was seen near the eastern limb on Oct 10 type Dko comprising two irregular penumbral sunspots and surrounded by an extensive area of faculae.
Its face shows much less detail, usually no more than a few little sunspots and maybe some white faculae (bright Sun-clouds) around the edge.
Scientists compared climate data from the past millennium to changes in solar brightness produced by dark sunspots and bright points called faculae.
In the new images, the faculae look like towering walls.
This filter will give you a nice view of sunspots, faculae, and granulation in larger-aperture scopes.
Bright magnetic features called faculae typically accompany sunspots.

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