There is one single point in the Earth's orbit where it is closest to the sun.
That point is called the "perihelion".
The points farthest from a planet are called apoapsis, while the points nearest to a planet are called periapsis. Apoapsis is the farthest point in an orbit, and periapsis is the closest point in an orbit.
it's called the moon's "perigee"
The high points in an elliptical orbit are called apogee, while the low points are called perigee. Apogee is the point farthest from the center of the body being orbited, while perigee is the point closest to the center.
A revolution: The Earth revolves in an elliptical (oval) orbit around the Sun. This orbit is planetary; the Sun is a star, and a large object that orbits a star is known as a planet.
The eccentricity of the Earth's orbit is currently about 0.0167; that rounds to zero.
During an eclipse
During an eclipse
The path Earth travels around the sun is called an orbit. This orbit is elliptical in shape, meaning it is not a perfect circle but is slightly elongated. Earth takes 365.25 days to complete one orbit around the sun.
The earth's orbit around the sun is not a perfect circle, so there is a point at which we are nearest to the sun, and a point at which we are farthest from it. The point in the orbit at which we are nearest the sun is called "perihelion". The earth passes that point at some time during the first few days in January. In 2011, it happened on January 3. The point in the orbit at which we are farthest from the sun is called "aphelion". We pass it at some time during the first few days of July.
No. It is in low earth orbit.
No. The earth's orbit round the sun is elliptical and there are two points Aphelion and Perihelion where it is nearest and furthest from the Sun in Summer and Winter. The orbit is stable and if anything the Earth may be moving very slowly away from the Sun due to tidal energy losses.
The movement of the Moon around the Earth is called lunar orbit. It is an elliptical path that the Moon follows as it revolves around the Earth.