Portal:Astronomy/Picture/Week 14 2006

From Wikipedia, the free encyclopedia
Jump to: navigation, search
M57 The Ring Nebula.JPG

The Ring Nebula is one of the best-known planetary nebulae, objects formed when dying stars shed off their outer layers. While planetary nebulae show a diverse range of shapes, the Ring is almost perfectly spherical. It lies about 2300 light years away, in the constellation of Lyra