The link sends you to a good over-all article to start with.
Moon and earth distance
The earths orbit around the sun is almost circular.
The Earth is in an elliptical orbit around the Sun, with a minimum distance (perihelion) of 147,098,074 km, and a maximum distance (aphelion) of 152,097,701 km. The Moon is in an elliptical orbit around the Earth, with a minimum distance (perigee) of 363,104 km and a maximum distance (apogee) of 405,696 km.
Orbit
No. The moon's orbit around the earth is.
no
Orbit
Yes.
The annual orbit of Earth around the sun is known as a year.
The semi-major axis of Earth's elliptic orbit around the Sun is approximately 149.6 million kilometers. This distance represents the average distance between Earth and the Sun.
The Earth's journey around the sun is called its orbit.
The maximum amount of an ellipse is called its major axis, and half of this distance is the semi major axiswhich is usually used to give the size of an ellipse. The semi major axis of Earths orbit, for example, is 150 million kilometers. It represents the average distance between the Earth and the sun and is called astronomical unit, or one AU