Image comparing the size of Earth (right) with a typical white dwarf star such as Sirius B. A white dwarf is the final stage in the evolution of most stars - and indeed the Sun will one day become a white dwarf itself. A star with a mass less than 1.4 times that of our Sun is thought,after it has used all its nuclear fuel,to form a white dwarf. Its outer layers escape into space,leaving the core behind as a white dwarf. These exotic objects are very,very dense,the mass of a star compressed into a sphere the size of a planet,dozens or even a hundred times smaller | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Garlick, Mark |
Taille de l’image : | 6000 px × 3380 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |