0
Perihelion is the point in an object's orbit around the sun where it is closest to the sun.
Comes from greek peri- =near
Anahelion is the opposite--the point in an object's orbit around the sun where it is farthest from the sun.
Comes from greek ap--=away
The -helio part of each of these specifies that the object is orbiting around the sun. There are other words for orbiting different things.
Still curious? Ask our experts.
Chat with our AI personalities
Jordan
Blake
Taiga
Add your answer:
Earn +20 pts
What is the distance in Au between the sun and mercury which is km from the sun?
At its furthest (aphelion) 0.467 AU and at its nearest (perihelion) 0.307 AU.
Does the aphelion and the perihelion happen on the same days every year?
No, the aphelion (farthest point from the Sun) and perihelion (closest point to the Sun) do not happen on the same days every year. The Earth's orbit around the Sun is elliptical, so the dates of aphelion and perihelion shift slightly from year to year.
What is the term for when a planet is at the point of its orbit nearest the sun?
The term for when a planet is at the point of its orbit nearest the sun is "perihelion." This is the closest point to the sun in a planet's elliptical orbit.
What is the name of the point on Earth's orbit when Earth is closet to the sun?
The point on Earth's orbit when it is closest to the sun is called perihelion. At perihelion, Earth is approximately 147 million kilometers (91 million miles) away from the sun, compared to its farthest point, aphelion.
How can one determine the semi-major axis of an orbit when provided with the perihelion and aphelion distances?
To determine the semi-major axis of an orbit when given the perihelion and aphelion distances, you can use the formula for the semi-major axis, which is the average of the perihelion and aphelion distances. This can be calculated by adding the perihelion and aphelion distances and then dividing by 2.
