Extrasolar planetary orbits. Computer artwork of a stellar system with an Earth-like planet in its nearest orbit,four other planetary orbits,an orbiting asteroid and an orbiting comet. An alien (or extrasolar) planet has to fit a narrow range of sizes and distances from its star if it is to have a surface temperature suitable for liquid water,and to retain an atmosphere. Many planets have already been discovered orbiting nearby stars | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Podevin, Jean-Francois |
Bildgröße: | 3693 px × 4800 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |