Image Credit: X-ray: NASA/CXC/RIT/J.Kastner et al.; Optical: NASA/STScI;
Colors processing: Exoplanet.sg
Cat's Eye Nebula
Look like a cat's eye, this beautiful planetary nebula is one of the most complex planetary nebulae. It has eleven rings of glowing gas created at an interval of 1,500 years. Planetary nebulae are created at the final phase of a dying red giant stars. Regular convulsion ejected concentric rings of gases into space. Cat's Eye nebula located 3,000 light-years away in the constellation Draco (The Dragon), discovered by William Herschel in 1786. The inner structures are far more complex and not well understood by astronomers. In about 5 billion years, our own Sun will suffer the same fate and ended its final stage of evolution as a planetary nebula.