California nebula. Optical image of the California nebula (NGC 1499). North is at top. This is a huge cloud of gas,mainly hydrogen,which glows due to the ionisation of the hydrogen gas by ultraviolet radiation from the star Xi Persei (lower centre). The nebula takes its name from its resemblance to the outline of the state of the USA when viewed from the side | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Celestial Image Co. |
Bildgröße: | 3495 px × 3543 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |