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chromospheric network

The chromospheric network is an ever-present network of long thin sinuous chains of tiny low-contrast brighter points called filigree (also found in plages) extending over much of the solar disk in H-alpha. These points, or network elements, often have darker spicules or short fibrils sticking out of, or running over them (part of the fine disk detail known as the dark mottles), making the actual network harder to see. The chromospheric network is formed by magnetic field lines related to supergranulation cells in the photosphere below.

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