Question

1. what is the difference between perihelion and aphelion?

perihelion describes a planet with an elliptical orbital path and aphelion describes a planet with a perfect circle orbital path.

aphelion is the point in the orbit where the planet is close to the sun. in contrast, perihelion is the point in the planets orbit when it is farthest from the sun.

perihelion is the point in the orbit where the planet is close to the sun. in contrast, aphelion is the point in the planets orbit when it is farthest from the sun.

aphelion describes a planet with an elliptical orbital path and perihelion describes a planet with a perfect circle orbital path.

Explanation:

Perihelion and aphelion are terms related to a planet's orbit around the sun. Perihelion specifically refers to the position in the orbit where the planet is at its closest distance to the sun. Aphelion, on the other hand, refers to the position where the planet is at its farthest distance from the sun. These terms are used to describe the elliptical nature of a planet's orbit (as opposed to a perfectly circular orbit).

Answer:

Perihelion is the point in the orbit where the planet is close to the sun. In contrast, aphelion is the point in the planet's orbit when it is farthest from the sun.