| Surface of the Sun imaged with a Hydrogen-alpha filter, showing small sunspots. Sunspots are areas of magnetic activity that are cooler than the rest of the Sun's surface. They range in size from hundreds to thousands of kilometres across. | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Casado, Juan Carlos |
| Bildgröße: | 3000 px × 3000 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |