Photosphere

PHOTOSPHERE The intensely bright portion of the sun visible to the unaided eye; the "surface" of the sun.

Photosphere The visible surface of the sun.
Photosynthesis The process whereby plants use sunlight, water, and carbon dioxide to manufacture their food and generate oxygen as a byproduct.

The Sun's photosphere is composed of convection cells called granules, rising columns of superheated (5800 °C) plasma averaging about 1000 kilometres in diameter. The plasma cools as it rises and descends in the narrow spaces between the granules.

ChromosphereIn solar-terrestrial terms, the layer of the solar atmosphere above the photosphere and beneath the transition region and the corona.

CHROMOSPHERE A thin layer of relatively transparent gases above the photosphere of the sun. It is observed best during a total eclipse of the sun. CIRCULATION The flow or motion of a fluid in or through a given area or volume.

Filament A mass of gas suspended over the photosphere by magnetic fields and seen as dark lines threaded over the solar disk. A filament on the limb of the sun seen in emission against the dark sky is called a prominence.

In solar-terrestrial terms, a bright region of the photosphere seen in white light, seldom visible except near the solar limb.
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These regions are usually broad and irregular and approximately coincide with faculae and sunspots in the underlying photosphere.

Perihelion: The time of the year when the Earth is closest to the Sun, (About Jan. 4).
PH Scale: A scale which measures the amount of alkalinity or acidity of different substances. The PH of pure distilled water is 7.0
Photosphere: The surface of ...

Most solar energy finally escapes from a thin layer of the Sun's atmosphere called the photosphere--the part of the Sun observable to the naked eye. The sun appears to have been active for 4.

See also: Earth, Cloud, Temperature, Surface, Pressure