Sunspot
A sunspot is a region on the Sun's surface (photosphere) that is marked by a lower temperature than its surroundings, and intense magnetic activity. Although they are blindingly bright, at temperatures of roughly 5000 K, the contrast with the surrounding material at some 6000 K leaves them clearly visible as dark spots. If they were isolated from the surrounding photosphere they would be brighter than an electric arc.
Related Topics:
Sun - Photosphere - K - Electric arc
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~ Table of Content ~
| ► | Introduction |
| ► | Sunspot variation |
| ► | History |
| ► | Physics |
| ► | Application |
| ► | References |
| ► | External links |
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