Optical photograph of M45,the Pleiades open star cluster. The brighter stars of the cluster are embedded in a distinctive blue halo,caused by their starlight reflecting off dust particles in the cold gas around them. Only 400 light years from Earth,the Pleiades consists of some 300-500 stars,six or seven of which ("the seven sisters") are visible to the naked eye | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Sanford, John |
Taille de l’image : | 4972 px × 3592 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |