What is true about the foci of a planet in elliptical orbit?

Question

The sun is located in the center of the orbit.

Earth is located in the center of the orbit.

The sun is located at one focus.

Earth is located at one focus.

Answer 1

In the context of a planet, such as Earth, in an elliptical orbit around the Sun, the following statement is true:

The sun is located at one focus.

In an elliptical orbit, the two foci of the ellipse are located inside the ellipse itself. For the case of the planets in our solar system, the Sun is situated at one of these foci, while the other focus does not have any significant physical object located at it. The planet (e.g., Earth) moves around the Sun in this elliptical path. The other statements you provided are not accurate.