Can you explain the different stars in correlation to their lifespan : red, blue, yellow, white? Similarities and differences?
Inner Core Activity:
Stars vary in how long they are active according to their mass, with the largest stars having the shortest life spans. As stars age, their inner core nuclear activity changes and as the hydrogen runs out, the core contracts and the outer layer that still has hydrogen expands.
Answer and Explanation:
The dwarf stars change in color as they move along their life cycles. The younger stars, also called main sequence stars, are yellow, like our sun,...
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from CLEP Natural Sciences: Study Guide & Test PrepChapter 9 / Lesson 3