Emission nebula. Melipal Very Large Telescope image of an emission nebula around the star AB7. The colours correspond to ionised gases: hydrogen (red),oxygen (green) and helium (blue). Helium emission indicates that the star causing the nebula to glow must be very hot. AB7 is a binary star,one component of which is a Wolf-Rayet star; a large,hot star with a powerful stellar wind | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / EUROPEAN SOUTHERN OBSERVATORY |
Bildgröße: | 1200 px × 1198 px |
Modell-Rechte: | nicht erforderlich |
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