Emission nebulae scattered across the Milky Way in the constellations Cepheus (left) and Cygnus (far right). The nebulae in our galaxy,like the stars,are most concentrated in the galactic plane,which is seen as this band of stars (Milky Way) across the night sky. Two large emission nebulae (red) are seen here: IC 1396 (centre left) and the North America Nebula (NGC 7000,upper right). A large dark nebula lies in between. The star Deneb (Alpha Cygni) is at top right. Nebulae are clouds of gas and dust in space,many light years across. They are called emission nebulae when the hydrogen gas is ionised by nearby stars,emitting red light. Nebulae can form new stars and planets | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Lodriguss, Jerry |
Taille de l’image : | 4322 px × 2867 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
|