Veil nebula supernova remnant (NGC 6960),optical image. This wisp of glowing gas is part of a much larger spherical shell called the Cygnus Loop. The shell comprises stellar material ejected in a supernova,the explosive death of a massive star. The supernova forming this shell is thought to have occurred between 5-8000 years ago. The gas was cast off into space at high speeds,and when it impacted the interstellar medium it compressed and heated it,forming a glowing plasma. The bright star at upper right is 52 Cygni,which is unrelated to the supernova. The distance to the nebula is a matter of debate,with estimates ranging from 1400 to 2600 light years. It lies in the constellation Cygnus | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Croman, Russell |
Taille de l’image : | 3930 px × 2620 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |