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Astronomy

Chapter 18 Homework

Course Materials are always under revision! Weblecture content may change anytime prior to two weeks before scheduled chat session for content.

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Homework

Scholars Online Astronomy - Chapter 18: The Birth of Stars

Homework

Reading Preparation

Reading: Astronomy, Chapter 18: The Birth of Stars

Study Guide

Key Formulae to Know

  • There are no key formulae for this chapter.

Web Lecture

Read the following weblecture before chat: How stars form

Study Activity

Planetarium Program: Use your planetarium program to explore deep space nebulae objects.

  • If possible, turn on only "Dark Nebuala" labels. How are these star-forming regions distributed?
  • Observe at least two emission nebulae, such as M8, M20, NGC 3372, M42, and NGC 7000. Describe the detailed structure of each. Observe emission nebulae in M101 (the Pinwheel Galaxy). Where are these nebula within the galaxy? What might that tell us about the distribution of emission nebula in the Milky Way?
  • Make close observations of the Pleiades, and use your planetarium program's ability to make an HR diagram of the cluster, or make one of your own based on the cluster stars magnitudes and stellar type. What does the plot of the cluster tell you about the age of the cluster?

Website of the Week: Read about the birth of new stars at the University of Tennesee Astronomy 162 course site.

Chapter Quiz

Lab Work

Read through the lab for this week; bring questions to chat on any aspect of the lab, whether you intend not perform it or not. If you decide to perform the lab, be sure to submit your report by the posted due date.