RCW 58

RCW 58 is a bright nebula in the constellation of Carina approx. 10,000 light years from Earth. The central star is a Wolf-Rayet - named after French astronomers Charles Wolf and Georges Rayet. These stars live fast and die young in comparison with the Sun. They quickly exhaust their core hydrogen supply, move on to fusing heavier core elements, and expand while ejecting their outer layers via high stellar winds.
In this case, the central star WR 40 ejects the atmosphere at a speed of nearly 100 kilometers per second, and these outer layers have become the expanding oval-shaped nebula RCW 58.