supergranulation cells

supergranulation cells

[¦sü·pər‚gran·yə′lā·shən ‚selz]
(astronomy)
Convective cells in the solar photosphere with primarily horizontal flow and diameters of about 20,000 miles (30,000 kilometers). Also known as supergranules.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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