About This Chapter
The History of Astronomy - Chapter Summary and Learning Objectives
The study of astronomical phenomena might seem like a relatively new practice; there's a lot of complicated physics required to classify stars' spectral sequence or detect the background radiation emitted by the Big Bang. But in fact, the study of astronomy has been occurring ever since ancient societies sorted out their calendar years with observations that could be made with the naked eye. Let instructors teaching this chapter help you chart some of the early progress made in this field with lessons on the following:
- Ancient methods for telling and tracking time
- Relationship between celestial objects and the Earth's orbit
- Impact of the Copernican Revolution and Galileo's observations
- Contributions of Brahe, Kepler and Newton to the study of astronomy
|The Scientific Field of Astronomy||Learn which astronomical objects and events are studied in this field.|
|The Ancient Study of Astronomy||Survey ancient cultures' purposes for studying astronomy. Outline their contributions to this field.|
|The Constellations: Definition & Name Origins||Pinpoint some of the more well known constellations. Explain how they came to be named.|
|What Is Astrology?||Get an introduction to astrology as practiced by ancient peoples. Find out why its core principles have been rejected by the scientific community.|
|The Zodiac Constellations & Their Visibility in the Sky||Explain why we can view each of the constellations in this group at various points in the Earth's orbit.|
|Telling Time in Ancient Times||Take a closer look at methods used by ancient peoples to chart the course of a day and determine the time of year.|
|The Lunar Calendar & Metonic Cycle||Differentiate between the length of the lunar calendar and the Metonic cycle by describing some of the dates that fall within them.|
|The Connection Between the Seven Days of the Week & Astronomical Objects||Relate days of the week to the names of astronomical objects.|
|Geocentric, Heliocentric & Ptolemaic Models of the Universe||Describe the heliocentric model of the solar system. Compare it to geocentric models in general and the Ptolemaic model in particular.|
|The Copernican Revolution||Learn how Copernicus's heliocentric model of the solar system changed the study of astronomy.|
|Tycho Brahe's Contribution to Astronomy||Assess the impact of observations made by Brahe on the study of astronomy.|
|Kepler's Three Laws of Planetary Motion||Use Kepler's laws to describe the orbital radius and period of planets, comets and asteroids. Study the relationship between these objects' orbits and gravitational force.|
|Galileo, the Telescope & the Church||Survey Galileo's contributions to the scientific method, his improvements to the telescope and his conflicts with the Catholic church over the heliocentric model of the universe.|
|Sir Isaac Newton And Astronomy||Explore how Newton's achievements impacted the study of astronomy, both directly and indirectly.|
1. The Scientific Field of Astronomy
Space is a large and exciting place, full of things we have yet to discover. Astronomy aims to uncover the mysteries of space, something people have been fascinated with as long as they have been on Earth.
2. The Ancient Study of Astronomy
This lesson will teach you about three important cultures and civilizations that contributed much to our understanding of astronomy. They include the Babylonians, Maya, and Greeks.
3. The Constellations: Definition & Name Origins
This lesson will teach you about ancient constellations and how they came to be. We'll define modern constellations and learn why they're important. You'll also learn about the differences between a constellation and an asterism.
4. What is Astrology?
This lesson will teach you about astrology, tell you if it's the same thing as astronomy, why or why not, and discuss the reasons astrology is so good at predicting so many different things. I predict that you might enjoy this lesson.
5. The Zodiac Constellations & Their Visibility in the Sky
The zodiac is a concept that spans thousands of years. You'll learn how the zodiac and the ecliptic are related, as well as the origin of the horoscope, in this lesson.
6. Telling Time in Ancient Times
This lesson will explore the concepts of time and telling time in ancient history, including the lunar phase cycle, the calendar, the sundial, and how ancient people viewed time compared to us.
7. The Lunar Calendar & Metonic Cycle
This lesson will discuss the lunar calendar, luni-solar calendar, the Metonic cycle, and how they relate to keeping time in the ancient world and even some calendars today.
8. The Connection Between the Seven Days of the Week & Astronomical Objects
This lesson will explain to you why the English language has its current names for its days of the week and what Roman gods and Anglo-Saxons have to do with it.
9. Geocentric, Heliocentric & Ptolemaic Models of the Universe
This lesson will lay out for you how ancient Greek philosophers came up with their models of the universe,. We'll also look at who Ptolemy was and what he contributed, and whether or not the Greeks were correct.
10. The Copernican Revolution
This lesson will discuss a famous astronomer by the name of Nicolaus Copernicus, his early history, his revolutionary idea, and why his model of the universe was actually wrong.
11. Tycho Brahe's Contribution to Astronomy
There was a man who did not believe Ptolemy's version of the universe nor did he believe in Copernicus's views on the universe. Who was this daring man? He was Tycho Brahe. We'll learn about him in this lesson.
12. Kepler's Three Laws of Planetary Motion
Find out about the interesting life and major contributions of Johannes Kepler. This lesson will also teach you how to find out how long it takes a planet to revolve around the sun!
13. Galileo, the Telescope & the Church
This lesson explores the contributions of Galileo to modern science. It examines his early steps toward a scientific method, his work on falling bodies and, of course, his astronomical discoveries. Finally, the Church's reaction to these discoveries is explored.
14. Sir Isaac Newton And Astronomy
This lesson will teach you about Newton's laws of motion and universal gravitation as well as why the moon doesn't fly off into space and why it doesn't crash into the Earth.
15. Origins of the Julian & Gregorian Calendars
The Julian calendar and Gregorian calendar were both revolutionary in their own right. Find out who's responsible for putting them into place and which one of the two we use today and why.
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Other chapters within the Astronomy 101: Intro to Astronomy course
- How Scientists Think and Work
- Matter in Astronomy
- Light in Astronomy
- Newton's Laws in Astronomy
- Momentum, Energy, Pressure, Temperature & Gas
- Rotational Motion in Physics
- Earth's Spheres and Astronomy
- Influences on Climate
- The Orbits of Celestial Bodies
- The Earth, Sky, and Moon
- The Moon: Formation & Phases
- The Atmosphere on Earth and Other Planets
- The Sun's Structure & Components
- The Solar System: Layout, Formation & Dating
- Characteristics of Our Solar System's Planets
- Small Celestial Bodies & Satellites in Our Solar System
- Measurement of Star Qualities
- Star Types and Significance
- The Birth and Life of Stars
- Star Death and Stellar Remnants
- The Milky Way Galaxy
- Galaxies: Properties & Characteristics
- The Universe: Key Concepts & Theories
- Life in the Universe
- Celestial Navigation & Timekeeping
- Relativity in Time and Space