Cygnus constellation. Constellation of Cygnus,the Swan,featuring the star Deneb (bright,upper centre). The Northern Cross is formed by Deneb and the other brightest stars in Cygnus at centre,top right,bottom left and bottom right. Cygnus was first named as such by Ptolemy in the 2nd century AD,but had been named after other birds for centuries before that. Deneb or Alpha Cygni is a white supergiant star; its size means that at the end of its life it will explode as a supernova | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Sanford, John |
Taille de l’image : | 4979 px × 3579 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |