Emission nebula. Melipal Very Large Telescope image of an emission nebula around the star BAT99- 2. The colours correspond to ionised gases: oxygen (green),hydrogen (red) and helium (blue). Helium emission indicates that the star causing the nebula to glow is very hot. BAT99-2 is a Wolf- Rayet star; a large,hot star with a powerful stellar wind | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / EUROPEAN SOUTHERN OBSERVATORY |
Taille de l’image : | 1200 px × 1196 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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