About This Chapter
Star Types and Significance - Chapter Summary and Learning Objectives
Astronomy is a very broad field, and stars are just one kind of entity found in the night sky, although their presence and role in astronomic activity can be significant. In this chapter, you'll access video lessons to learn about the different kinds of stars and the common properties they share throughout their life cycles. Explore why the stars discussed here are important to an understanding of astronomy. Video lessons also include a discussion of stars' motion and mass, as well as the Doppler shift. You'll learn about key concepts related to the Doppler shift, like blueshift, redshift, relative mass, and stellar combinations. By the end of the chapter, you should be able to:
- Identify common features of stars according to their type
- Define 'main sequence star'
- Describe star clusters
- Define 'binary star'
- Understand the concept of the Doppler shift
- Name several types of stellar combinations
|Types of Stars by Size, Color and Life Cycle||Discuss stars according to their physical type and development.|
|What is a Main Sequence Star?||Define this kind of star, and understand its role in space.|
|Types of Star Clusters||Learn about common properties of star clusters and how to identify different kinds based on this knowledge.|
|Binary Stars and Doppler Shifts||Define what binary stars are, and describe how their movement produces Doppler shifts; identify and describe stellar combinations.|
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. What is a Main Sequence Star?
This lesson will explain what a main sequence star is and how it evolves. You'll also learn about how the sun ages as a main sequence star and how that will affect life on Earth.
3. Types of Star Clusters
Our lesson will explore what star clusters are, the two types of star clusters, and their characteristics and differences as well as how we can figure out their ages using the H-R diagram.
4. What Are Binary Stars?
This lesson defines binary stars and describes the different kinds, including visual binary, astrometric binary, spectroscopic binary, and eclipsing binary stars. We'll also describe how orbits and mass relate to one another in a binary star system.
Earning College Credit
Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2,000 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the Basics of Astronomy course
- Celestial Navigation & Timekeeping
- Characteristics of Our Solar System's Planets
- Earth's Spheres and Astronomy
- Galaxies: Properties & Characteristics
- How Scientists Think and Work
- Influences on Climate
- Life in the Universe
- Light in Astronomy
- Matter in Astronomy
- Measurement of Star Qualities
- Momentum, Energy, Pressure, Temperature & Gas
- Newton's Laws in Astronomy
- Relativity in Time and Space
- Rotational Motion in Physics
- Small Celestial Bodies & Satellites in Our Solar System
- Star Death and Stellar Remnants
- The Atmosphere on Earth and Other Planets
- The Birth and Life of Stars
- The Earth, Sky, and Moon
- The History of Astronomy
- The Milky Way Galaxy
- The Moon: Formation & Phases
- The Orbits of Celestial Bodies
- The Solar System: Layout, Formation & Dating
- The Sun's Structure & Components
- The Universe: Key Concepts & Theories