Which stellar population has highly elliptical orbits
A)Pop I extreme
B)Pop I intermediate
C)Pop II intermediate
D)Pop II extreme

Question

Quizplus · Accepted Answer

Pop II extreme (old halo stars) are known to have highly elliptical orbits. They are thought to have been formed from gas clouds that were not as well-mixed as those that formed newer stars, resulting in a wider range of orbital shapes and inclinations. Pop I extreme (young disk stars) have more circular orbits.

Which Stellar Population Has Highly Elliptical Orbits