Oort cloud objects, illustration. Objects within the Oort cloud are thought to form a cloud of comet nuclei surrounding the solar system. The Oort cloud is thought to extend over a light year from the Sun, up to a distance of about 100, 000 astronomical units (AU). One AU is the distance from the Earth to the Sun, some 150 million kilometres. The existence of the Oort cloud is inferred from the orbits of long-period comets that take millions of years to orbit the Sun. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / TIM BROWN |
Bildgröße: | 8268 px × 2279 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |