Lynds Dark Nebula 1251 in Cepheus
Of note is the deeply red star in the lower-left of the picture. That’s a carbon star, one whose makeup is a mixture of carbon and oxygen. The mixture on the outer layers creates a red color (from carbon monoxide being created) but inside the star is carbon in a state of plasma.
What does this mean? Well one might think of it as a star made of diamonds that are so hot that they don’t simply sparkle reflected light, they absolutely emanate light and energy of their own accord.