Iris nebula (NGC 7023),optical image. This nebula,lying 1300 light years away in the constellation Cepheus,is so-called because of its resemblance to a flower. It is a reflection nebula,or a cloud of fine dust particles that scatters light from the central massive,hot young star. It appears blue because short-wavelength blue light is scattered more than red | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gendler, Robert |
Taille de l’image : | 4188 px × 2901 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |