The planetary nebula in complex formation is in the constellation of Draco. The name of this nebula, like the cat's eye on the chest of the sky, is the catalyst nebula or the catamaran nebula or Cat's Eye Nebula. Its official name as NGC 6543 or Caldwell 6 This nebula distance from Earth is 3000 light years. On February 15, 1786, astronomer William Herschel found the first one. On August 29, 1864, British astronomer William Huggins identified it as a planetary nebula in an electromagnetic spectrum. The main part of this nebula is impossible to complete the density of which is around 7000 to 9000 K .. Its exhaustion of low density is 15,000 K. This nebulous star's temperature is 80000 K and brightness is about 10000 times the sun. The diameter of this star is approximately 0.65 times the sun. In this recent Spectroscopic analysis, the nebulous gas emissions of 1900 km / s, approximately one trillion tons of gas emitted in about a year. Slowly this star is losing its weight, it is thought that this nebula was formed in the supernova blast about 1000 years ago, when its mass was about 5 times the sun.
Read next
From @emamuddin