<Li> Ferris, Timothy (1988). Coming of Age in the Milky Way . William Morrow & Co. p. 512 . ISBN 978 - 0 - 688 - 05889 - 0 . </Li> <Ul> <Li> Kippenhahn, Rudolf, 100 Billion Suns: the birth, life, and death of the stars, Pub . Princeton University Press, pages 264, 1983 . isbn 0691087814 </Li> </Ul> <Li> Kippenhahn, Rudolf, 100 Billion Suns: the birth, life, and death of the stars, Pub . Princeton University Press, pages 264, 1983 . isbn 0691087814 </Li>

How are population ii stars different than the sun