La Superba
۴٫۲ × 1011 m
La Superba is one of the reddest stars in the night sky. It is so red because of all the carbon-13 it creates when fusing helium. (Normal carbon is carbon-12.) La Superba is only 2500° C, making it one of the coldest stars.

۴٫۲ × 1011 m
La Superba is one of the reddest stars in the night sky. It is so red because of all the carbon-13 it creates when fusing helium. (Normal carbon is carbon-12.) La Superba is only 2500° C, making it one of the coldest stars.
