Red, blue and green glow of the nebula due to the ionized atoms of sulfur, hydrogen and oxygen.
Astronomers have obtained images of the emission region, which lies in the plane of the milky Way in the direction of the constellation Cygnus, which contains many nebulae.
A luminous cloud of gas and dust, which is located in the center of the image is a nebula Sh2-101, also called the nebula the “Tulip”.
The nebula is located at a distance of eight thousand light-years from Earth, and its size is 70 light years.
Red, blue and green glow of the nebula due to the ionized atoms of sulfur, hydrogen and oxygen. In the center of the image near the blue arc, you can see a star HDE 227018, ionizes the atoms which is what supplies the energy for the nebula’s bright glow.
