EVERYDAY SCIENCE

Detailed explanation-1: -From the Figure 3.3, it is clear that the earth is going around the sun in an elliptical orbit. Notice that throughout its orbit, the earth is inclined in the same direction.

Detailed explanation-2: -For example, Earth rotates on its own axis, producing the 24-hour day. Earth revolves about the Sun, producing the 365-day year. A satellite revolves around a planet.

Detailed explanation-3: -An orbital plane is the flat, disk-shaped space that connects the center of the object being orbited with the center of the orbiting objects. Because all planets in our solar system share a similar orbital plane, planets don’t run in to each other.