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The Astronomy Book, Lesson 10

Stars and galaxies

by Dr. Jonathan Henry on January 1, 2002

These lessons are geared for younger students. Many lessons will, however, include activities for the older student.


The Astronomy Book

The Astronomy Book

by Dr. Jonathan Henry

The second book in the highly successful “Wonders of Creation” series. The Astronomy Book soars through the solar system! The reader will acquire a wealth of knowledge on subjects such as supernovas, red shift, facts about planets, and much more. Enhanced with dozens of color photos and illustrations including official NASA shots!


These lessons are geared for younger students. Many lessons will, however, include activities for the older student. Parents/teachers will easily find the answers to questions in the text, and should prepare themselves by reading the stated pages prior to having the student read the weekly assignment. If a child is not able to read yet, parents may wish to read the text to the student.


  • Pages 50–55


  • Genesis 1:15-16
  • Judges 5:20
  • Psalm 147:4

Questions to answer:

  1. Write an essay (at least 3 paragraphs) describing the composition of stars.
  2. What are the colors in the spectrum? (Hint: there are 7 colors and they can be remembered by a name, “Roy G Biv.”)
  3. Anna Jump Cannon is the lady scientist responsible for developing the current classification scheme of dividing stars into their spectral classes (O,B,A,F,G,K,M). Write a research paper on her life and work.
  4. Henrietta Swan Leavitt worked on developing a way to measure the distance to stars. Find out more here, and write a research paper on her life and work.
  5. How do stars differ from each other?
  6. What is a “black hole”? Read more about them in these articles.
  7. In what galaxy is Earth located?

Words to know:

  • Incandescent
  • Spectrum
  • Prism
  • Spectral analysis
  • Stellar magnitudes
  • Black hole
  • Galaxy

Additional articles:

The concepts presented in the section “Seeing Distant Objects in a Young Universe” may be too difficult for younger students. Below are a few Web articles that describe this concept. Also, an excellent resource for those who want to pursue this further is Starlight and Time by Dr Russell Humphreys.

Please look at the “How can we see light from stars millions of light years away?” section on the Get Answers: Astronomy page for more articles.

NOTE: Parents/teachers may wish to read these articles and summarize them for younger students.

Recommended Resources


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