Question

what is a drawf star? how is it created?​

Answer 1

If a red giant has insufficient mass to generate the core temperatures required to fuse carbon (around 1 billion K), an inert mass of carbon and oxygen will build up at its center. After such a star sheds its outer layers and forms a planetary nebula, it will leave behind a core, which is the remnant white dwarf.

Answer 2

Answer:

Dwarf star, any star of average or low luminosity, mass, and size. Important subclasses of dwarf stars are white dwarfs and red dwarfs. Dwarf stars include so-called main-sequence stars, among which is the Sun.