Emission nebula. Optical image of part of the emission nebula NGC 7822. A nebula consists of gas and dust. An emission nebula has been heated by nearby stars until the hydrogen gas in it glows red. Star formation can take place when a nebula collapses. NGC 7822 is found in the constellation Sagittarius | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Cuillandre, Jean-Charles / Canada-France-Hawaii Telescope |
Taille de l’image : | 4650 px × 3720 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |