The contrast makes them observable even with relatively modest telescopes. Feature Temperature (°C) Description Photosphere Average ~5,500 The Sun's visible surface, emitting white light.
Sunspots Dark Core Umbra Penumbra
A sunspot typically begins as a small, intense magnetic flux tube. Sunspots are among the most visually striking features on the solar surface, appearing as dark blemishes that traverse the bright disk of the Sun.
Sunspots are fundamentally associated with the photosphere, which is the specific layer we perceive as the Sun's visible surface. This layer has a temperature of approximately 5,500 degrees Celsius at its base, cooling as it extends outward.
Sunspots Dark Core Umbra Penumbra
Sunspots often appear in pairs or groups, corresponding to the north and south magnetic poles. The atmosphere itself is divided into the photosphere, chromosphere, and corona.
More About What layer of the sun do sunspots occur
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