About This Chapter
How It Works:
- Identify the lessons in the ScienceFusion Stars chapter with which you need help.
- Find the corresponding video lessons with this companion course chapter.
- Watch fun videos that cover the stars topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- Different kinds of stars
- Star brightness
- The relationship between brightness and luminosity
- Brightness on the magnitude scale
- Temperatures of stars
- Sizes of stars
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1. Types of Stars by Size, Color and Life Cycle
Learn to identify the different sizes and colors of stars and how they relate to the star life cycle. In this lesson, we'll talk about spectral classification, how many stars there are of each type and the approximate color of the different classes of stars.
2. The Brightness Of Stars
This lesson will define and describe important terms related to a star's brightness, including luminosity, intrinsic brightness, apparent brightness, and more.
3. Relating a Star's Brightness to Luminosity
This lesson will explore how luminosity, apparent brightness, and distance are related to one another using the inverse square law. You'll also learn how luminosity can be gauged based on distance and apparent brightness.
4. Using the Magnitude Scale to Compare Star Brightness
This lesson will describe the magnitude scale, apparent brightness, and apparent visual magnitude. It will also teach you how to compare the brightness of stars.
5. Determining the Temperature of a Star
This lesson will explain to you the concepts of a spectrum, electromagnetic radiation, the temperature of a faraway star and how that relates to something known as a blackbody curve and Wien's law.
6. How to Find the Size of a Star
This lesson will tell you how astronomers figure out the size of stars. You'll learn it has to do with a star's temperature, luminosity, and a cool thing known as the H-R diagram.
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Other chapters within the ScienceFusion Space Science: Online Textbook Help course
- ScienceFusion Space Science Unit 1.1: Structure of the Universe
- ScienceFusion Space Science Unit 1.3: Life Cycle of Stars
- ScienceFusion Space Science Unit 2.1: Historical Models of the Solar System
- ScienceFusion Space Science Unit 2.2: Gravity in the Solar System
- ScienceFusion Space Science Unit 2.3: The Sun
- ScienceFusion Space Science Unit 2.4: The Terrestrial Planets
- ScienceFusion Space Science Unit 2.5: The Gas Giant Planets
- ScienceFusion Space Science Unit 2.6: Small Bodies in the Solar System
- ScienceFusion Space Science Unit 3.1: Earth's Days, Years & Seasons
- ScienceFusion Space Science Unit 3.2: Moon Phases & Eclipses
- ScienceFusion Space Science Unit 3.3: Earth's Tides
- ScienceFusion Space Science Unit 4.1: Images From Space
- ScienceFusion Space Science Unit 4.2: Technology for Space Exploration
- ScienceFusion Space Science Unit 4.3: History of Space Exploration