About This Chapter
Who's It For?
Anyone who needs help learning or mastering navigation and timekeeping in astronomy material will benefit from the lessons in this chapter. There is no faster or easier way to learn navigation and timekeeping in astronomy. Among those who would benefit are:
- Students who have fallen behind in understanding timekeeping or navigation methods
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
- Students who prefer multiple ways of learning astronomy (visual or auditory)
- Students who have missed class time and need to catch up
- Students who need an efficient way to learn about navigation and timekeeping in astronomy
- Students who struggle to understand their teachers
- Students who attend schools without extra astronomy learning resources
How It Works:
- Find videos in our course that cover what you need to learn or review.
- Press play and watch the video lesson.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Verify you're ready by completing the navigation and timekeeping in astronomy chapter exam.
Why It Works:
- Study Efficiently: Skip what you know, review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the navigation and timekeeping in astronomy chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any question on navigation or timekeeping in astronomy. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students Will Review:
This chapter helps students review the concepts in a navigation and timekeeping in astronomy unit of a standard introduction to astronomy course. Topics covered include:
- Units of time
- Apparent vs. mean solar time
- Leap years
- Tropics of Cancer & Capricorn
- Global positioning system
1. Units of Time: Solar, Sidereal & Synodic
This lesson will define solar day, sidereal day, synodic month, sidereal month, solar (tropical) year, and sidereal year, as well as tell you their exact lengths. After you've watched the video, take our brief quiz.
2. Apparent Solar Time vs. Mean Solar Time
This lesson will discuss the concept of the solar day and how long it is. You'll also learn what mean solar time, apparent solar time, time zones, and standard time have to do with it all.
3. The Origin & Purpose of Leap Years
This lesson will explain what the leap year is, why it was instituted, and why we bother using it compared to an alternative calendar that would mimic the solar year exactly.
4. Importance of the Tropic of Cancer & the Tropic of Capricorn
In this lesson, you'll learn about the significance of the Tropics of Cancer and Capricorn, and how they help explain the hot weather in the tropical zone and the cold weather above and below the Arctic and Antarctic Circles, respectively.
5. The Global Positioning System and Its Uses
This lesson will describe the global positioning system: who invented it, who runs it, how GPS works based on satellites and handheld units, and the many different uses for GPS. After you've completed this lesson, check out the quiz questions that follow.
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Other chapters within the Intro to Astronomy: Help and Review course
- The History of Astronomy: Help and Review
- How Scientists Think and Work: Help and Review
- Matter, Energy, and Astronomy: Help and Review
- Light in Astronomy: Help and Review
- Newton's Laws in Astronomy: Help and Review
- Rotational Motion and Astronomy: Help and Review
- Orbits, Tides, and Gravity: Help and Review
- Relativity in Time and Space: Help and Review
- Conservation Laws in Astronomy: Help and Review
- Earth's Spheres and Astronomy: Help and Review
- The Earth, Sky, and Moon: Help and Review
- The Moon's Form and Phases: Help and Review
- The Atmosphere on Earth and Other Planets: Help and Review
- Influences on Climate: Help and Review
- The Sun and Energy: Help and Review
- Star Types and Significance: Help and Review
- Measurement of Star Qualities: Help and Review
- The Birth and Life of Stars: Help and Review
- Star Death and Stellar Remnants: Help and Review
- Formation of the Solar System: Help and Review
- Galaxies, Stars and Solar Systems
- Components of the Solar System: Help and Review
- Small Celestial Bodies in the Solar System: Help and Review
- The Milky Way Galaxy: Help and Review
- Characteristics of Galaxies: Help and Review
- Life & the Universe: Help and Review
- Telescopes: Help and Review