what are carbon stars
Carbon Star. Carbon stars are gigantic stellar masses similar to red giants, but their atmosphere contains more carbon than oxygen. They are rare and they are so big they can swallow whole planets in our Solar System, indicating an advanced stage of evolution.etelgeuse, a star in the constellation of Orion, is larger than the orbit of planet Mars. Carbon stars are as big as them, but only contain more carbon than oxygen. As stars age, they grow hotter, and the radiation from their core tries to blow them apart.