19. Where is the sun located on Earth’s elliptical orbit?
*
1 point
at a focus
at the perihelium
at the aphelium
at the center of the two foci
The sun is located at one of the foci of Earth's elliptical orbit.
The sun is located at one of the foci of Earth's elliptical orbit.
The sun is located at one of the foci of Earth's elliptical orbit. To understand this concept, let's first understand what an elliptical orbit is.
An elliptical orbit is a type of orbit in which an object, in this case, Earth, revolves around another object, the sun, in the shape of an ellipse rather than a perfect circle. An ellipse is a stretched-out circle with two foci (plural of "focus").
Now, imagine drawing an ellipse on a piece of paper. The two foci are the points inside the ellipse, and they are not located at the center of the ellipse. Instead, they are equidistant from the center.
In the case of Earth's elliptical orbit, the sun is located at one of these foci. This means that the sun is not at the center of the ellipse, but rather slightly off-center.
To summarize, the sun is located at a focus of Earth's elliptical orbit, not at the perihelium (closest point to the sun), not at the aphelium (farthest point from the sun), and not at the center of the two foci.