This nebulous diameter of about 130 light-years diameter is located in a peak of 5200 light years away from the planet (Constellation of Unicorn / Monoceros). The enormous H II region rich in the name of this nebula is named Rosette Nebula. Whose other name is Caldwell 49.open cluster NGC 2244 (Caldwell 50) is located near this Nebula. The mass of this nebula equals about 10000 masses of the sun. In 2001, NASA's Chandra X-ray Observatory observes that this nebula is being born in the H II region, with numerous stars. And the temperature in this region is 6 million Calvin. This nebula rich in cosmic gas and dust is like flowers, so also known as cosmic flower.
From @emamuddin