No, all orbits are ellipses. That includes the Earth's orbit.
No; it's about 23 degrees off the plane of its orbit.
Ellipse.
The season
no. the earths orbit cause the seasons
revloion
Earths Orbit? Earths Orbit?
All orbits are ellipses. You might describe an ellipse as a "flattened circle", but mathematically, a circle is a special version of an ellipse in which both foci are at the same spot.
The orbit of the Earth around the Sun is an elliptical orbit. It is not a perfect circle but rather an elongated circle with the Sun slightly off-center. This means that the distance between the Earth and the Sun varies throughout the year.
Earth's eccentricity Eccentricity is defined as the difference in shape between an ellipse and a perfect circle. In a similar fashion to Earth's obliquity, the more uniform Earth's orbit is (more like a perfect circle), the less difference there is in climate change throughout the year.
earths tempertures
Venus
Earth's orbit (revolution) around the Sun is not circular - it's an ellipse. However, this ellipse is fairly close to a circle.
earths tempertures
I am not sure if it is called a circumference, since it is not a circle, but whatever it is called is 583,400,000 miles in length.
The earths orbit around the sun is almost circular.
Orbit
Orbit