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Astronomy By: Steven Starks

Table Of Contents

 Chapter 1: Earth's Motion Through Space





Chapter 2: Earth's Rotation and Revolution Around the Sun





Chapter 3: How the Sun Produces Energy





Chapter 4: How Incoming Solar Energy Helps Life on Earth







Works Sited

Chapter 1: Earth's Motion Through Space:

Earth's motion through space can be describe multiple ways, but its original movement can be described by aphelion and periphilion. Aphelion is when the Earth is farthest from the Sun in it's orbit. Periphilion is when the Earth is closest to the sun in it's orbit. 

Earth and the other planets orbit the Sun. Kepler's Laws of Planetary Motion state that all the planets orbit the sun in an eliptical way.

Earth moves around the Sun in our solar system, and our solar system moves around inside the Milky Way galaxy, and our galaxy is just a small part of the universe.

 All the planets spin on their axis. The moon spinning on it's axis whilest moving around Earth causes Earth to slow down in it's spinning, this is called precession.

Earth tilts around at an incline on it's axis. This is called nutation.

When two objects orbit each other, they are kept together at a center, the center of two orbitting bodies is the barycenter.

The Sun in our solar system is not stationary because it is being drawn twards the center of the Milky Way Galaxy.

Chapter 2: Earth's Rotation and Revolution around the Sun.


Chapter 3: How the Sun produces Energy. 

Chapter 4: How incoming solar energy make life possible.