Admin Table of Contents
- 1 What are some differences between pop I and Pop II stars quizlet?
- 2 What is the difference in composition between Population I and Population II stars which populations probably formed first and how do you know?
- 3 What is the difference in a Population I and Population II star and why do these differences occur?
- 4 What are differences between open star clusters and globular star clusters?
What are some differences between pop I and Pop II stars quizlet?
Population I stars are usually the blue younger stars. They orbit in the disk and they are relatively rich in metals. Population II stars are the red, older stars that lies in the bulge and halo of the Galaxy. They orbits in the elliptical orbits in the halo.
What is the difference in composition between Population I and Population II stars which populations probably formed first and how do you know?
(Population I is the name given to the stars found within… Population I consists of younger stars, clusters, and associations—i.e., those that formed about 1,000,000 to 100,000,000 years ago. Population II consists of the oldest stars and clusters, which formed about 1,000,000,000 to 15,000,000,000 years ago.
What is the difference between stars in spiral arms and globular clusters quizlet?
The spiral arms contain many hot young stars and therefore is luminous. The clusters found in the halo are globular clusters (approximately 100 of them), so the halo is population II, and contains very old stars.
What is true about elliptical galaxies quizlet?
True: In general, elliptical galaxies contain very little cool gas.
What is the difference in a Population I and Population II star and why do these differences occur?
Extreme Population I stars (the most metal rich stars) are found only in the spiral arms; these are the youngest stars. Intermediate Population I stars (like the Sun) are located through the disk. They are slightly less metal rich. Population II stars are metal poor stars; they contain about 0.1 percent metals.
What are differences between open star clusters and globular star clusters?
Globular clusters are old clusters of stars that have remained in a gravitationally bound system. Open clusters are much younger and smaller than globular clusters. They are the recent birthplaces of new stars, which form out of clouds of dust and gas, and contain only hundreds or thousands of stars.