Schematic illustration showing the surface features and internal structure of the Sun. The Sun's interior consists of a core,a radioactive zone,a convective layer and,finally,the visible 'surface' - the photosphere. Many features are visible on the surface and in the solar atmosphere. Spicules are jet-like gas flows extending vertically upwards,all over the Sun. The photosphere is not smooth,but rather has a granulated appearance - the grains mark the boundaries of rising cells of gas,carrying heat to the surface by convection. Sunspots are also a prominent feature of the photosphere - they can be as big as the Earth (top left). Finally,flares (left) and prominences (right) are eruptions of gas related to magnetic activity | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Garlick, Mark |
Bildgröße: | 5398 px × 3238 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |