Sunspot penumbra — Free Astrophysics Illustration | GPAI | GPAI

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Sunspot penumbra — Free Astrophysics Illustration | GPAI | GPAI

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Sunspot penumbra

Sunspot penumbra

Astrophysics

Sunspot penumbra

A lighter gray ring surrounding a sunspot umbra, composed of many thin radial filaments or streaks extending outward like brush fibers, creating a textured, feathered appearance around the darker central region. Flat 2D clipart style with clean edges, minimal shading, and a yellow-orange solar context.

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PNG

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